Guide to Evidence

Guide to Evidence  Article IV: Relevancy and its limits

Adopted Date: 01/01/2023

Table of Contents

Section 401. Test for relevant evidence

Evidence is relevant if

(a) it has any tendency to make a fact more or less probable than it would be without the evidence and

(b) the fact is of consequence in determining the action.


This section is derived from Commonwealth v. Schuchardt, 408 Mass. 347, 350 (1990), and is nearly identical to Fed. R. Evid. 401. See also Commonwealth v. Kennedy, 389 Mass. 308, 310 (1983) (citing with approval Proposed Mass. R. Evid. 401). Massachusetts law accords relevance a liberal definition. See Commonwealth v. Fayerweather, 406 Mass. 78, 83 (1989) (“rational tendency to prove an issue in the case”); Commonwealth v. Vitello, 376 Mass. 426, 440 (1978) (“renders the desired inference more probable than it would be without the evidence”). Compare Commonwealth v. Scesny, 472 Mass. 185, 198–199 (2015) (testimony that witness was “pretty certain” defendant had been a patron at a bar was relevant and properly admitted), with Commonwealth v. Caruso, 476 Mass. 275, 291 (2017) (“without evidence that the defendant had accessed [the information depicted in the admitted screenshots of the defendant’s computer, the screenshots] had no tendency to affect the probability of any material fact”). The concept of relevancy has two components: (1) the evidence must have some tendency (probative value) to prove or disprove a particular fact, and (2) that particular fact must be material to an issue (of consequence) in the case. Harris-Lewis v. Mudge, 60 Mass. App. Ct. 480, 485 (2004).

To be admissible, it is not necessary that the evidence be conclusive of the issue. Commonwealth v. Ashley, 427 Mass. 620, 624–625 (1998). It is sufficient if the evidence constitutes a link in the chain of proof. Commonwealth v. Arroyo, 442 Mass. 135, 144 (2004). “Evidence must go in by piecemeal, and evidence having a tendency to prove a proposition is not inadmissible simply because it does not wholly prove the proposition. It is enough if in connection with other evidence it helps a little.” Commonwealth v. Tucker, 189 Mass. 457, 467 (1905).

“The general pattern of our cases on the alleged remoteness in time or space of particular evidence indicates two general principles. If the evidence has some probative value, decisions to admit the evidence and to leave its weight to the jury have been sustained. The exclusion on the ground of remoteness of relevant evidence has generally not been sustained. The cases have recognized a range of discretion in the judge.” (Citations and footnote omitted.)

DeJesus v. Yogel, 404 Mass. 44, 47 (1989). To be relevant, evidence must not be too remote in time from the date of the crime. See, e.g., Commonwealth v. Corliss, 470 Mass. 443, 450–451 (2015) (judge was warranted in reasoning that sixteen-month interval between shooting and time witness saw defendant loading bullets into a firearm was not too remote because a person would retain knowledge of how to use a firearm). See also Crowe v. Ward, 363 Mass. 85, 88–89 (1973) (admissibility of weather reports as proof of conditions at some distance away from the reported observations).

Reliance is placed upon the trial judge’s discretion to exclude evidence whose probative value is “substantially outweighed” by risk of unfair prejudice, confusion, or waste of time. Commonwealth v. Bonds, 445 Mass. 821, 831 (2006). Although omitted in a number of cases, a proper explanation of this balancing test includes the term “substantially.” See Note to Section 403, Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reasons.

Section 402. General admissibility of relevant evidence

Relevant evidence is admissible unless any of the following provides otherwise: 

(a) the United States Constitution,

(b) the Massachusetts Constitution, 

(c) a statute, or 

(d) other provisions of the Massachusetts common law of evidence. 

Irrelevant evidence is not admissible.


This section is derived from Commonwealth v. DelValle, 443 Mass. 782, 793 (2005), and Commonwealth v. Owen, 57 Mass. App. Ct. 538, 547 (2003). Unless relevant, evidence will not be admitted because it does not make a fact in dispute more or less probable than it would be without the evidence. See Commonwealth v. Seabrooks, 425 Mass. 507, 512 n.7 (1997). But the converse is not true, which is to say that not all relevant evidence will be admitted. See Commonwealth v. Vitello, 376 Mass. 426, 440 (1978) (“all relevant evidence is admissible unless barred by an exclusionary rule”); Poirier v. Plymouth, 374 Mass. 206, 210 (1978)(same). See also Tocci v. Tocci, 490 Mass. 1, 10 (2022) (in bifurcated trial, not abuse of discretion for judge in second trial to decline to provide jury with factual findings made by judge who decided first trial where some findings were not relevant and some, though relevant, might confuse or prejudice jury).

Relevant evidence may be excluded for any number of reasons. See, e.g., G. L. c. 233, § 20 (evidence of a private conversation between spouses is inadmissible); Commonwealth v. Kater, 432 Mass. 404, 416–417 (2000) (hypnotically aided testimony is not admissible); Commonwealth v. Harris, 371 Mass. 462, 467–468 (1976) (constitutional mandate forbids admission of a coerced confession regardless of its relevance); Commonwealth v. Kartell, 58 Mass. App. Ct. 428, 432 (2003) (relevant evidence excluded on grounds it was too remote). “Alleged defects in the chain of custody usually go to the weight of the evidence and not its admissibility.” Commonwealth v. Viriyahiranpaiboon, 412 Mass. 224, 230 (1992); Section 403, Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reasons (relevant evidence may be excluded if its probative value is substantially outweighed by the risk of unfair prejudice, confusion, etc.). There may be circumstances where portions of documentary evidence should be excluded or redacted to protect personal privacy. See Matter of the Enforcement of a Subpoena, 436 Mass. 784, 794 (2002).

Although pleadings are inadmissible under G. L. c. 231, § 87, the admissibility of any document attached to a pleading is governed by the ordinary rules of evidence. Care & Protection of Doretta, 101 Mass. App. Ct. 584, 591 (2022).

For illustrations of the rule barring the admission of irrelevant evidence, see Commonwealth v. Mason, 485 Mass. 520, 534–535 (2020) (decision of defendant or witness to consult attorney not probative of guilt or anything else defendant or witness may have done); Commonwealth v. Santana, 101 Mass. App. Ct. 690, 694 (2022) (defendant’s immigration status not relevant to question of whether he committed crime); and Commonwealth v. Hampton, 91 Mass. App. Ct. 852, 854–855 (2017) (use of adult pornography “wholly irrelevant” to prove charges of sexual assault on child). 

Cross-Reference: Note “Address of Witness” to Section 501, Privileges Recognized Only as Provided.

Section 403. Excluding relevant evidence for prejudice, confusion, waste of time, or other reasons

The court may exclude relevant evidence if its probative value is substantially outweighed by a danger of one or more of the following: unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly presenting cumulative evidence.


This section states the general rule that the trial judge has discretion to exclude even relevant evidence may be excluded when its probative value is “substantially outweighed” by the danger of unfair prejudice, confusion of the issues, misleading the jury, consuming time unnecessarily, or presenting cumulative evidence. See Commonwealth v. Spencer, 465 Mass. 32, 48 (2013); Gath v. M/A-Com, Inc., 440 Mass. 482, 490–491 (2003); Ruszcyk v. Secretary of Pub. Safety, 401 Mass. 418, 423 (1988). Prior bad act evidence, which is considered "inherently prejudicial," is evaluated by a more exacting standard and should be excluded when the risk of unfair prejudice merely "outweighs," rather than "substantially outweighs," its probative value. Commonwealth v. Crayton, 470 Mass. 228, 249 & n.27 (2014). Cross-Reference: Section 404(b), Character Evidence; Crimes or Other Acts: Crimes, Wrongs, or Other Acts.

Unfair Prejudice. Relevant evidence is presumed to be prejudicial or harmful to the party against whom it is offered, but exclusion is warranted only when the prejudice is unfair. Commonwealth v. Kindell, 84 Mass. App. Ct. 183, 187–188 (2013). Unfair prejudice may result when jurors are un-necessarily exposed to inflammatory evidence that might cause them to decide the case based on emotion. Commonwealth v. Berry, 420 Mass. 95, 109 (1995). See, e.g., Commonwealth v. Cruzado, 480 Mass. 275, 279 (2018) (use of racial slur relevant to show motive; judge mitigated prejudicial effect by conducting individual voir dire of prospective jurors on whether the evidence would create bias); Commonwealth v. Bishop, 461 Mass. 586, 596–597 (2012) (racial slur pre-sumptively poses risk of unfair prejudice such that “before a judge admits evidence that a de-fendant used this word to describe a man of color, the judge must be convinced that the probative weight of such evidence justifies this risk”); Gath v. M/A-Com, Inc., 440 Mass. 482, 490–491 (2003) (evidence of arguably intentional spoliation of evidence that was relevant to two central issues in case not unfairly prejudicial). Unfair prejudice also may result when the trier of fact considers ev-idence properly admitted for a limited purpose for an impermissible purpose. See, e.g., Commonwealth v. Wardsworth, 482 Mass. 454, 471–472 (2019) (evidence of defendant’s gang affilia-tion, properly admitted to establish motive for killing, a nonpropensity purpose, created risk of unfair prejudice where jury were permitted to consider evidence on issue of guilt or innocence with no limitation); Commonwealth v. McIntyre, 430 Mass. 529, 542 (1999) (prosecutor improperly argued for substantive use of evidence admitted only for impeachment). The use of voir dire or limiting instructions may help to avoid unfair prejudice. Commonwealth v. Alleyne, 474 Mass. 771, 780 (2016) (discussing use of voir dire to mitigate prejudice). Compare Commonwealth v. Martinez, 476 Mass. 186, 194–195 (2017) (audio-video recording of news broadcast not unfairly prejudicial where judge explained that it was not admitted for its truth, required extensive redactions, and provided limiting instructions as to its use), with Wardsworth, 482 Mass. at 472 (broad “limiting instruction” permitted jury to consider evidence of gang affiliation for almost any purpose).

In balancing probative value against the risk of unfair prejudice, the fact that the evidence goes to a central issue in the case weighs in favor of admission. Commonwealth v. Jaime, 433 Mass. 575, 579 (2001). See, e.g., Commonwealth v. Da Lin Huang, 489 Mass. 162, 174–175 (2022) (photo-graphs of postmortem injuries inflicted on victim were relevant to show defendant’s intent and malice); Commonwealth v. Jackson, 486 Mass. 763, 783 (2021) (autopsy photograph probative on “highly contested” issue of bullet trajectory); Commonwealth v. McGee, 469 Mass. 1, 11 (2014) (witness’s demonstration of victim’s position on couch probative on central issue of premeditation). But see Commonwealth v. Walters, 485 Mass. 271, 284 (2020) (photograph of decomposing body had only slight relevance of time of death and risk of unfair prejudice outweighed any probative value); Commonwealth v. Fidalgo, 74 Mass. App. Ct. 130, 133–134 (2009) (evidence that defendant had been passenger in three prior automobile accidents over past nine years in which she had claimed injuries and sought damages not relevant in prosecution for filing false motor vehicle in-surance claim because it showed nothing about character of prior claims yet had potential for prejudice because case was essentially a credibility contest). The effectiveness of limiting instruc-tions in minimizing the risk of unfair prejudice should be considered in determining admissibility. Commonwealth v. Dunn, 407 Mass. 798, 807 (1990). See also Section 404(b), Character Evidence; Crimes or Other Acts: Crimes, Wrongs, or Other Acts.

Confusion of Issues and Misleading the Jury. The trial judge has discretion to exclude relevant evidence if it has potential to confuse or mislead the fact finder. Commonwealth v. Rosa, 422 Mass. 18, 25 (1996); Commonwealth v. Beausoleil, 397 Mass. 206, 217 (1986). See Commonwealth v. Dabney, 478 Mass. 839, 859–860 (2018) (exclusion of impeachment evidence consisting of advertising invoices not abuse of discretion where admission of such evidence was likely to confuse jury in the absence of company testimony explaining record-keeping practices). In a bench trial, judges have broader discretion to admit evidence they might not admit before a jury, because “judges are less likely to be unduly swayed by potentially inflammatory evidence.” Commonwealth v. Seesangrit, 99 Mass. App. Ct. 83, 91–92 (2021) (argument that sperm cell DNA evidence should have been excluded as more prejudicial than probative may have had merit if trial had been jury trial rather than bench trial).

Unnecessarily Time Consuming. The trial judge has discretion to exclude relevant evidence if it is unduly time consuming. Commonwealth v. Cruz, 53 Mass. App. Ct. 393, 407–408 (2001). 

Cumulative Evidence. The trial judge has discretion to exclude evidence if it is merely cumulative. Commonwealth v. Bonds, 445 Mass. 821, 831 (2006); Fitchburg Gas & Elec. Light Co. v. Department of Telecomm. & Energy, 440 Mass. 625, 641 (2004). Evidence that is relevant to an essential element of a crime, claim, or defense is not cumulative and subject to exclusion simply because an opposing party offers to stipulate to the fact at issue. Gath v. M/A-Com, Inc., 440 Mass. 482, 490–491 (2003); Commonwealth v. Taghizadeh, 28 Mass. App. Ct. 52, 60–61 (1989) (defendant may not preclude prosecution from proving element of crime by offering stipulation).

Evidence of Similar Occurrences. Evidence of similar occurrences may be admitted if there is substantial identity between the occurrences and there is minimal danger of unfairness, jury confusion, or wasted time. See Denton v. Park Hotel, Inc., 343 Mass. 524, 527 (1962); Robitaille v. Netoco Community Theatre of N. Attleboro, Inc., 305 Mass. 265, 267–268 (1940). Whether the occurrences are sufficiently similar to be relevant is a fact-specific determination. See Dubuque v. Cumberland Farms, Inc., 93 Mass. App. Ct. 332, 345 (2018) (internal report describing 485 car strikes at Cumberland Farms locations properly admitted because those incidents were substantially similar and “relevant to the jury’s consideration of whether the risk was foreseeable and whether Cumberland Farms was aware of that risk”). Cf. Kromhout v. Commonwealth, 398 Mass. 687, 692–693 (1986) (error to admit evidence of other accidents without showing of similarity of circumstances, particularly in light of court’s exclusion of statistics about daily traffic volume). The requirement of substantial identity is not met when the other occurrence or occurrences “may have been the consequence of idiosyncratic circumstances” and therefore irrelevant to the case being tried. Read v. Mt. Tom Ski Area, Inc., 37 Mass. App. Ct. 901, 902 (1994). See Robitaille, 305 Mass. at 266–267. Evidence of similar occurrences may be admissible to show the following:

Causation. See Carter v. Yardley & Co., 319 Mass. 92, 94 (1946) (other instances of skin irritation caused by defendant’s perfume properly admitted to show causation); Shea v. Glendale Elastic Fabrics Co., 162 Mass. 463, 464–465 (1894) (evidence that other people who worked in defendant’s mill, under similar conditions, became ill from lead poisoning was admissible to prove cause of illness). But see Reil v. Lowell Gas Co., 353 Mass. 120, 135–136 (1967) (evidence of multiple other fires at gas plant and different plant owned by defendant were inadmissible because those incidents “would have been little help in determining the cause of the explosion on [the date in question]”).

Notice. See Santos v. Chrysler Corp., 430 Mass. 198, 202–205 (1999) (no abuse of discretion to admit testimony of six Chrysler minivan owners regarding other braking incidents, as well as National Highway Transportation Safety Administration vehicle owners’ questionnaires submitted by the six owners to establish notice of defect); Elwell v. Del Torchio, 349 Mass. 766, 766 (1965) (where plaintiff was injured by stairway railing giving way, proper to admit similar incident that occurred one year earlier and was known to defendants). But see Crivello v. All-Pak Mach. Sys., 446 Mass. 729, 737–738 (2006) (evidence of prior accidents involving bagging machine were properly excluded where no evidence that defendants were aware of any accidents). 

Rebuttal of Claim of Impossibility. See Griffin v. General Motors Corp., 380 Mass. 362, 365–366 (1980) (results of experiment on air filtration system of same model car that was at issue in case were admissible to rebut defendant’s theory that it was impossible for fumes from engine compartment to enter passenger compartment).

Absence of Complaint or Other Incident. Subject to the same requirement of substantial similarity or identity, evidence that there have been no other complaints or incidents may be admissible. See Carrel v. National Cord & Braid Corp., 447 Mass. 431, 447–448 (2006) (absence of oral or written complaints concerning bungee cord admissible to rebut questions regarding failure to conduct product testing); Silver v. New York Cent. R.R. Co., 329 Mass. 14, 19–21 (1952) (evidence that eleven other passengers in plaintiff’s train car did not complain about temperature to porter would be admissible if other passengers were in substantially similar situation, if porter’s duties included receiving such complaints and he was present to receive complaints on that day, and if it was unlikely that other passengers complained to another employee); Schuler v. Union News Co., 295 Mass. 350, 352 (1936) (absence of complaints of illness after people ate at defendant’s restaurant admissible to rebut claim that defendant’s turkey sandwich caused plaintiff’s sickness). But see Marvin v. City of New Bedford, 158 Mass. 464, 467 (1893) (evidence that no accidents had occurred on highway was inadmissible to prove that defect in road did not exist).

Foreseeability. See Whitaker v. Saraceno, 418 Mass. 196, 199 (1994) (previous occurrences of similar criminal acts on defendant’s premises may be considered in determining whether event in question was foreseeable).

Exclusion as a Sanction. See Section 103(g), Rulings on Evidence, Objections, and Offers of Proof: Exclusion as SanctionSection 1102, Spoliation or Destruction of Evidence

Constitutional Considerations. In a criminal case, the defendant has a constitutional right to present a complete defense; however, this right does not deprive the trial judge of discretion to exclude evidence that is repetitive, only marginally relevant, or that creates an undue risk of unfair prejudice or confusion of the issues. See Commonwealth v. Kartell, 58 Mass. App. Ct. 428, 433 n.2 (2003). See also Commonwealth v. Carroll, 439 Mass. 547, 552 (2003). The same considerations apply to limitations on cross-examination. See Commonwealth v. Gallett, 481 Mass. 662, 682 (2019) (judge must consider materiality of direct testimony and degree to which cross-examination was restricted).

Cross-reference: Section 1105, Third-Party Culprit Evidence; Section 1107, Inadequate Police Investigation Evidence.

Collateral Attacks. The trial judge has discretion to exclude evidence that attacks the validity of an underlying order or judgment in the prosecution of an alleged violation. See Commonwealth v. Lockwood, 95 Mass. App. Ct. 189, 199 (2019) (in criminal prosecution for parental kidnapping, no abuse of discretion to exclude evidence that custody orders issued from Juvenile Court were void as product of fraud); Commonwealth v. Marrero, 85 Mass. App. Ct. 911, 912 (2014) (defendant cannot act in violation of G. L. c. 209A order and then assert as defense in subsequent criminal prosecution that original order should not have been granted).

Weapons Evidence. Weapons evidence typically implicates Section 404, Character Evidence; Crimes or Other Acts, and is subject to the more exacting test of admissibility permitting the court to exclude evidence of a crime, wrong, or other act if its probative value is simply outweighed, not substantially outweighed, by the risk of unfair prejudice. The basis for this distinction, and the admissibility of weapons evidence generally, is discussed in the Notes to Section 404(b)(2), Crimes, Wrongs, or Other Acts: Permitted Uses.

Section 404. Character evidence; crimes or other acts

(a) Character evidence

(1) Prohibited uses

Evidence of a person’s character or a character trait is not admissible to prove that on a particular occasion the person acted in accordance with the character or trait. 

(2) Exceptions for a defendant or victim in a criminal case 

The following exceptions apply in a criminal case:

(A) a defendant may offer evidence, in reputation form only, of the defendant’s pertinent trait, and if the evidence is admitted, the prosecutor may offer evidence to rebut it; 

(B) where the identity of the first aggressor or the first to use deadly force is in dispute, a defendant may offer evidence of specific incidents of violence allegedly initiated by the victim, or by a third party acting in concert with or to assist the victim, whether known or unknown to the defendant, and the prosecution may rebut the same with specific incidents of violence by the defendant; and 

(C) a defendant may offer evidence known to the defendant prior to the incident in question of the victim’s reputation for violence, of specific instances of the victim’s violent conduct, or of statements made by the victim that caused reasonable apprehension of violence on the part of the defendant. 

(3) Exceptions for a witness

Evidence of a witness’s character for truthfulness or untruthfulness may be admitted under Sections 607, 608, and 609. 

(b) Crimes, wrongs, or other acts

(1) Prohibited uses

Evidence of a crime, wrong, or other act is not admissible to prove a person’s character in order to show that on a particular occasion the person acted in accordance with the character. 

(2) Permitted uses

This evidence may be admissible for another purpose, such as proving motive, opportunity, intent, preparation, plan, knowledge, identity, absence of mistake, or lack of accident. However, evidence of other bad acts is inadmissible where its probative value is outweighed by the risk of unfair prejudice to the defendant, even if not substantially outweighed by that risk. Evidence of such an act is not admissible in a criminal case against a defendant who was prosecuted for that act and acquitted.


Subsection (a). This subsection is derived from Commonwealth v. Helfant, 398 Mass. 214, 224 (1986), and Commonwealth v. Bonds, 445 Mass. 821, 829 (2006). Massachusetts follows the universally recognized rule against “propensity” evidence, i.e., evidence of a person’s character through reputation or specific acts (see Section 404[b]) offered to suggest that the person acted in conformity with that character or trait on the occasion in question is inadmissible. See Maillet v. ATF-Davidson Co., 407 Mass. 185, 187–188 (1990); Commonwealth v. Doherty, 23 Mass. App. Ct. 633, 636–637 (1987). See also Commonwealth v. Reddy, 85 Mass. App. Ct. 104, 108 (2014) (admission of unredacted Chapter 209A order that stated “THERE IS A SUBSTANTIAL LIKELIHOOD OF IMMEDIATE DANGER OF ABUSE” was error in prosecution for violation of order, as it constituted improper predictive or propensity evidence). Evidence of character, a general description of a person’s disposition, is generally inadmissible. Figueiredo v. Hamill, 385 Mass. 1003, 1003–1005 (1982) (testimony that decedent acted in a "habitually reckless manner" was inadmissible character evidence). Criminal profile evidence, regarding whether the defendant shares characteristics common to individuals who commit a particular crime, is also inadmissible. Commonwealth v. Coates, 89 Mass. App. Ct. 728, 733–735 (2016) (criminal profile evidence offered to show that defendant did not have pedophilic tendencies was fundamentally irrelevant and inadmissible). The prosecution may not offer in its case-in-chief evidence that the defendant is a violent or dishonest person in order to demonstrate that the defendant has a propensity to commit the crime charged. Commonwealth v. Mullane, 445 Mass. 702, 708–709 (2006). See also Commonwealth v. Roe, 90 Mass. App. Ct. 801, 807–808 (2016) (even where normally inadmissible evidence of character may be admitted for permissible purpose, failure to guide jury on their use of this evidence through proper instruction is prejudicial error). But see Commonwealth v. Adjutant, 443 Mass. 649, 664 (2005), discussed in the notes to Section 404(a)(2)(B).

Cross-Reference: Section 406, Routine Practice of a Business; Habit of an Individual.

Subsection (a)(2)(A). This subsection is derived from Commonwealth v. Nagle, 157 Mass. 554, 554–555 (1893), and Commonwealth v. Brown, 411 Mass. 115, 117–118 (1991). According to long-standing practice, evidence of the defendant's own good character—in reputation form only—is admissible to show that the defendant is not the type of person to commit the crime charged. See Commonwealth v. Belton, 352 Mass. 263, 267–269 (1967). The defendant is limited to introducing reputation evidence of traits that are involved in the charged crime. Commonwealth v. Beal, 314 Mass. 210, 229–230 (1943).

The prosecution has the right to impeach the defendant’s character witnesses with specific instances of bad conduct or criminal activity that are inconsistent with the character trait to which the witness has testified. See Commonwealth v. Oliveira, 74 Mass. App. Ct. 49, 53 (2009) (when, in prosecution for assault and battery, defendant testified to his character for peacefulness, trial judge did not abuse her discretion by allowing Commonwealth to cross-examine defendant based on his prior convictions for same offenses involving same victim to rebut his credibility as to his character, even though Commonwealth’s motion in limine to use these prior convictions for impeachment purposes had been denied prior to trial). Cross-Reference: Section 405(a), Methods of Proving Character: By Reputation. The prosecution may also present rebuttal evidence of the defendant’s bad character in reputation form. Commonwealth v. Maddocks, 207 Mass. 152, 157 (1910). 

Subsection (a)(2)(B). This subsection is derived from Commonwealth v. Adjutant, 443 Mass. 649, 664 (2005); Commonwealth v. Pring-Wilson, 448 Mass. 718, 737 (2007); and Commonwealth v. Chambers, 465 Mass. 520, 529–530 (2013). Where a claim of self-defense is asserted and the identity of the first aggressor is in dispute, trial courts have discretion to admit a defendant’s evidence of specific incidents of violence allegedly initiated by the victim even if unknown to the defendant. Adjutant, 443 Mass. at 664. A defendant who intends to introduce evidence of the victim’s specific acts of violence to support a claim that the victim was the first aggressor must provide notice to the court and to the Commonwealth of the specific evidence that will be offered and do so sufficiently prior to trial to permit the Commonwealth to investigate and prepare a rebuttal. The prosecution, in turn, must provide notice to the court and to the defendant of whatever rebuttal evidence the Commonwealth intends to offer at trial. Adjutant, 443 Mass. at 665–666; Mass. R. Crim. P. 14(b)(4). 

The Adjutant rule does not permit evidence of the victim’s participation in athletic activities such as boxing or martial arts on the issue of whether the victim was the first aggressor, although such activities may, if known to the defendant, be relevant to a claim of self-defense based on the defendant’s reasonable fear of the victim. Commonwealth v. Amaral, 78 Mass. App. Ct. 557, 559 (2011). If known to the defendant, the specific act evidence goes to the defendant’s state of mind, Commonwealth v. Simpson, 434 Mass. 570, 577 (2001); if the defendant was not aware of the violent acts of the victim, the evidence goes merely to the propensity of the victim to attack. Adjutant, 443 Mass. at 661–662. See generally id. at 665 (courts “favor the admission of concrete and relevant evidence of specific acts over more general evidence of the victim’s reputation for violence”). Judicial discretion to admit evidence of specific acts of violence on the question of who was the first aggressor extends to third parties acting in concert with or to assist the victim. Commonwealth v. Lopes, 89 Mass. App. Ct. 560, 564 (2016). Where the identity of either the initial aggressor or the first person to use or threaten deadly force is not in dispute, evidence of the victim’s history of violence is not admissible. See Commonwealth v. Connors, 95 Mass. App. Ct. 46, 54–55 (2019) (no error in excluding evidence of victim’s reputation for violence or specific violent acts in prison beating case where defendants did not argue that victim was first aggressor).

If the defendant introduces evidence of specific instances of the victim’s violent conduct to help establish the identity of the first aggressor, the prosecution may rebut by introducing evidence of the victim’s propensity for peacefulness. Adjutant, 443 Mass. at 666 n.19. See Commonwealth v. Lapointe, 402 Mass. 321, 325 (1988). The Commonwealth is also permitted to rebut such evidence by introducing specific instances of the defendant’s prior violent acts. Commonwealth v. Morales, 464 Mass. 302, 310–311 (2013). In such cases, as in traditional Adjutant-type cases, the judge must exercise discretion and determine whether the probative value of the proposed testimony about who was the first to use deadly force is substantially outweighed by its prejudicial effect. Commonwealth v. Chambers, 465 Mass. 520, 531 (2013). 

Cross-Reference: Section 412, Sexual Behavior or Sexual Reputation (Rape-Shield Law). 

Subsection (a)(2)(C). This subsection is derived from Commonwealth v. Sok, 439 Mass. 428, 434–435 (2003), and Commonwealth v. Fontes, 396 Mass. 733, 735–736 (1986). The evidence may be offered to prove the defendant’s state of mind and the reasonableness of actions claimed as self-defense so long as the defendant knew about it prior to the incident in question. See Commonwealth v. Edmonds, 365 Mass. 496, 502 (1974). 

Subsection (a)(3). This subsection is derived from Commonwealth v. Daley, 439 Mass. 558, 563 (2003). Cross-Reference: Notes to Sections 607, Who May Impeach a Witness608, A Witness’s Character for Truthfulness or Untruthfulness; and 609, Impeachment by Evidence of Conviction of Crime

Subsection (b)(1). This subsection is derived from Commonwealth v. Clifford, 374 Mass. 293, 298 (1978), and Maillet v. ATF-Davidson Co., 407 Mass. 185, 188 (1990). Evidence of a prior bad act may not be admitted to show the defendant has a bad character or a propensity to commit the crime charged. See Commonwealth v. Valentin, 474 Mass. 301, 307–308 (2016) (admission of evidence concerning defendant’s ownership of weapons other than weapon used to commit crime was improper because it “portrayed him as someone who was likely to commit murder, the crime which was charged”). “This rule stems from the belief that such evidence forces the defendant to answer accusations not set forth in the indictment, confuses his defense, diverts the attention of the jury, and may create undue prejudice against him.” Clifford, 374 Mass. at 298. Even evidence of lawful conduct can be excluded as a prior “bad act.” See Valentin, 474 Mass. at 307–308 (lawful ownership of weapons and ammunition). This rule applies to both civil and criminal cases. Maillet, 407 Mass. at 188 (evidence that plaintiff once before had a beer at work at an unspecified time and date prior to workplace accident).

Subsection (b)(2). This subsection is derived from Commonwealth v. Crayton, 470 Mass. 228 (2014); Commonwealth v. Helfant, 398 Mass. 214, 224–225 (1986); Commonwealth v. Tobin, 392 Mass. 604, 613 (1984), and G. L. c. 233, § 23F.

Comparison to Section 403. Section 404(b)(2) permits the court to exclude evidence of a crime, wrong, or other act that is offered for a proper purpose (e.g., to prove motive, opportunity, intent, preparation, plan, knowledge, identity, absence of mistake, or lack of accident) if the risk of unfair prejudice simply outweighs the probative value of the evidence. This is a more exacting standard than the standard set forth in Section 403, Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reasons, which permits the court to exclude relevant evidence if the danger of unfair prejudice, confusing the issues, misleading the jury, undue delay, wasting time, or needlessly presenting cumulative evidence substantially outweighs the probative value. This difference is due to the “inherent prejudice” associated with evidence of other bad acts; even when such evidence is relevant for a proper purpose other than propensity, the evidence should be excluded whenever “the risk of unfair prejudice outweighs its probative value.” Crayton, 470 Mass. at 249 & n.27. See Commonwealth v. Woollam, 478 Mass. 493, 500–501 (2017) (where offered to establish motive in prosecution for first-degree murder, “testimony regarding the changes in the defendant once he began using drugs,” including the statement that defendant had become “a little more violent,” was “more prejudicial than probative”).

Admissibility. Evidence of prior crimes or other bad acts is not admissible unless, as a matter of conditional relevance—see Section 104(b), Preliminary Questions: Relevance That Depends on a Fact—the judge is satisfied that a reasonable jury could find that the event took place. Commonwealth v. Leonard, 428 Mass. 782, 785–786 (1999). When an objection to a prior bad act is raised, the judge’s weighing of the probative value and prejudicial effect of the challenged evidence should be placed on the record for the benefit of the parties and the appellate court. Common-wealth v. Proia, 92 Mass. App. Ct. 824, 828 n.7 (2018).

“[T]hat prior bad act evidence may be disputed does not render it inadmissible.” Commonwealth v. Teixeira, 486 Mass. 617, 629 (2021) (lack of support, other than testimony of victim’s brother, “[did] not make the evidence demonstrably untrue,” and it was unnecessary to conduct voir dire of prior bad act witness when sole issue was bad act witness’s credibility). It is not a foundational requirement for the admissibility of other bad act evidence under Section 404(b) that the Commonwealth show either that the evidence is necessary or that there is no alternative way to prove its case. Commonwealth v. Copney, 468 Mass. 405, 411–413 (2014).

The evidence must be probative of a fact at issue and not be too remote in time. Commonwealth v. Butler, 445 Mass. 568, 574 (2005); Commonwealth v. Trapp, 396 Mass. 202, 206–207 (1985). However, evidence of an act that would ordinarily be too remote in time may be admissible to give context to later events. See Commonwealth v. Peno, 485 Mass. 378, 389 (2020) (evidence of defendant’s drug and alcohol use while pregnant, resulting in involvement of Department of Children and Families and restrictions on her conduct, admissible to explain feelings of resentment toward two-year-old victim of fatal beating). The same standards govern the admission of subse-quent bad acts. Commonwealth v. Centeno, 87 Mass. App. Ct. 564, 566–567 (2015). See also Commonwealth v. Crayton, 470 Mass. 228, 248–252 (2014) (in prosecution for possession of child pornography on library computer, abuse of discretion to admit hand-drawn, pornographic sketches of children found in defendant’s jail cell ten months after charged event, where primary factual issue was identity of person who used the library computer to view child pornography). “For evidence to be sufficiently probative, “there must be a ‘logical relationship’ between the prior bad act and the crime charged.” Commonwealth v. West, 487 Mass. 794, 805–807 (2021) (judge properly admitted evidence of defendant’s prior acts of vandalism and Internet searches because it “tended to negate the defendant’s contention that the sexual intercourse was consensual and that the victim’s death was accidental”). See Teixeira, 486 Mass. at 628 (shots fired at victim’s brother’s vehicle, in which victim was passenger, relevant as to motive, including prior animus between defendant and victim’s brother); Commonwealth v. Mason, 485 Mass. 520, 531–532 (2020) (testimony of prosecutor and civil attorney from prior proceedings between defendant and victim admissible to show pattern of escalating hostility toward victim). Thus, the prosecution may not offer proof of the defendant’s other burglaries to paint the defendant as a “burglar” or criminal type; but if the modus operandi of a prior burglary functions as an identifying feature because it is so distinctive as to be like a sig-nature, it may be admitted to connect the defendant to a burglary that shares the same modus operandi. Commonwealth v. Jackson, 428 Mass. 455, 459–460 (1998). See Dahms v. Cognex Corp., 455 Mass. 190, 201 (2009) (trial judge did not err when, after careful consideration, he admitted evidence of female employee’s clothing, speech, and conduct—which was admissible in context of sexually hostile work environment to show she was not substantially offended by em-ployer—not barred as irrelevant character and propensity evidence). Prior bad acts against someone other than the victim may be admissible if connected in time, place, or other relevant circumstances. Commonwealth v. Robertson, 88 Mass. App. Ct. 52, 55 (2015). See, e.g., Commonwealth v. Ubeda, 99 Mass. App. Ct. 587, 592–593 (2021) (testimony that defendant used similar tactics to commit similar acts on witness, who was not victim in this case, was properly introduced to show pattern of conduct and was not too remote in time).

Evidence of a prior bad act for which the defendant was prosecuted and acquitted is barred by the collateral estoppel principles of Article 12 of the Massachusetts Declaration of Rights. See Commonwealth v. Dorazio, 472 Mass. 535, 547–548 (2015). But see Commonwealth v. Adams, 485 Mass. 663, 676 (2020) (when one of three defendants was acquitted on charges of oral rape but jury deadlocked on charges of anal and vaginal rape as joint venturer, it was not error to allow victim to testify at retrial that “at least” two men had orally raped her).

The corroboration requirement of G. L. c. 277, § 63 (Limitation of Criminal Prosecutions), is not satisfied without independent corroborating evidence of the “specific criminal act at issue” and cannot be satisfied only with evidence of uncharged sexual misconduct. Commonwealth v. White, 475 Mass. 724, 736–738 (2016).

Limiting Instructions. “[A]ll cases where prior bad acts are offered invite consideration of the potency of this type of evidence, the risk that it may be misused, and the importance, in jury trials, of delivering careful limiting instructions.” Commonwealth v. Gollman, 51 Mass. App. Ct. 839, 845 (2001), rev’d on other grounds, 436 Mass. 111, 113–115 (2002) (extensive discussion of admis-sibility of defendant’s prior bad acts). See Commonwealth v. Roe, 90 Mass. App. Ct. 801, 807 (2016) (conviction reversed where witness testified to prior bad act ruled inadmissible in earlier motion in limine and judge failed to give full and prompt curative instruction). See generally Peter W. Agnes, Jr., Guided Discretion in Massachusetts Evidence Law: Standards for the Admissibility of Prior Bad Acts Against the Defendant, 13 Suffolk J. Trial & App. Advoc. 1 (2008).

Cross-Reference: Section 105, Limiting Evidence That Is Not Admissible Against Other Par-ties or for Other Purposes; Section 403, Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reasons; Section 405, Methods of Proving Character; Section 406, Rou-tine Practice of a Business; Habit of an Individual; Section 611(b)(2), Mode and Order of Examining Witnesses and Presenting Evidence: Scope of Cross-Examination: Bias and Prejudice.


  • Criminal Activity. See Commonwealth v. Brown, 477 Mass. 805, 819–820 (2017) (evidence of uncharged armed robbery occurring earlier in day introduced to prove coventurer’s intent to participate in subsequent armed robbery later that evening); Commonwealth v. Mazariego, 474 Mass. 42, 56 (2016) (history of bringing prostitutes to location relevant to show intent, similarity in location of past encounters, absence of mistake, and level of involvement in planning crime); Commonwealth v. Robidoux, 450 Mass. 144, 158 (2007) (evidence of prior starvation of child properly admitted to present full picture of events surrounding incident at issue); Commonwealth v. Walker, 442 Mass. 185, 201–203 (2004) (evidence tending to show that defendant previously engaged in similar, uncharged, criminal behavior admissible to show plan, common scheme, or course of conduct); Commonwealth v. Source One Assocs., Inc., 436 Mass. 118, 128–129 (2002) (trial judge properly allowed evidence of telephone calls similar to ones at issue at trial for purposes of showing that defendants were familiar with using ruses and false pretenses to obtain personal financial information); Commonwealth v. Leonard, 428 Mass. 782, 785, 787–788 (1999) (evidence of uncharged prior arson properly admitted in murder prosecution to show identity/modus operandi); Commonwealth v. Cordle, 404 Mass. 733, 736, 743–744 (1989) (evidence of prior break-in for which defendant was arrested and charged but never prosecuted properly admitted to show entire relationship between victim and defendant, state of mind, identification, knowledge, and motive).
  • Defense of Entrapment. For cases involving the defense of entrapment, compare Commonwealth v. Buswell, 468 Mass. 92, 104–105 (2014) (admissibility of prior bad acts when defense is entrapment), with Commonwealth v. Denton, 477 Mass. 248, 252 (2017) (risk of prejudice may require exclusion if prior bad acts are too remote in time).
  • Domestic Violence. See Commonwealth v. Da Lin Huang, 489 Mass. 162, 173–174 (2022) (evidence of domestic dispute at defendant’s apartment before killing, including physical contact, was relevant to show volatile nature of defendant’s relationship with victim and defendant’s intent); Commonwealth v. Rintala, 488 Mass. 421, 446–447 (2021) (evidence of defendant’s prior arrest for assault and battery of victim, defendant’s and victim’s restraining orders against each other, and pending divorce proceedings admissible in homicide prosecution to show motive and hostile relationship); Commonwealth v. Almeida, 479 Mass. 562, 567–569 (2018) (evidence of defendant’s previous threat to stab his girlfriend to death admissible to show parties’ violent relationship); Commonwealth v. Oberle, 476 Mass. 539, 550–552 (2017) (allowing previous domestic violence incident by defendant against victim to be admitted in prosecution for subsequent domestic violence to show nature of relationship between the two, and to show intent, motive, and absence of mistake or accident); Commonwealth v. Miller, 475 Mass. 212, 229–230 (2016) (evidence of domestic violence committed by defendant against his girlfriend, which led to confrontation between defendant and murder victim, properly admitted to show “contentious nature” of relationship between defendant and victim, which provided motive for killing).
  • Drug Use. See Commonwealth v. Bryant, 482 Mass. 731, 734–739 (2019) (evidence of drug distribution before and after shooting admissible as evidence of motive); Commonwealth v. O’Laughlin, 446 Mass. 188, 208–209 (2006) (evidence that defendant smoked crack cocaine and sought to obtain additional cocaine on night of the incident relevant to prove motive to rob to get more drugs); Commonwealth v. Mendes, 441 Mass. 459, 466 (2004) (defendant’s history of spending his wife’s money on drugs and prostitutes and prior arguments over financial issues properly admitted to prove financial motive for wife’s murder).
  • Gang Affiliation. See Commonwealth v. Chalue, 486 Mass. 847, 866–869 (2021) (evidence of Aryan Brotherhood membership admissible to explain why witness who cooperated in burying bodies did not initially go to police or tell anyone, as well as to enhance witnesses’ credibility as defendant’s confidants); Commonwealth v. Lopes, 478 Mass. 593, 604–605 (2018) (evidence of gang affiliation admissible to show motive and intent); Commonwealth v. Akara, 465 Mass. 245, 267–268 (2013) (use of gang affiliation to establish joint venture between codefendants); Commonwealth v. Bannister, 94 Mass. App. Ct. 815, 821–822 (2019) (no error in admitting expert testimony that defendant and murder victim were members of rival gangs and lay testimony that defendant and victim had twice engaged in fist fights during incarceration). But see Commonwealth v. Carter, 488 Mass. 191, 206–208 (2021) (probative value of gang evidence outweighed by prejudicial unfairness where no evidence established that rival gang existed or that there were ongoing hostilities). Where gang evidence is admitted, the judge must carefully cabin evidence with limiting instructions, voir dire, and exclu-sion of any references to prior acts of gang-related violence. Commonwealth v. Wardsworth, 482 Mass. 454, 472 (2019).
  • Grooming Evidence. See Commonwealth v. McDonagh, 480 Mass. 131, 135 n.6 (2018) (evidence of grooming, e.g., exposing a child to child pornography to reduce the child’s inhibitions for sexual activity with defendant, may be admissible if relevant for nonpropensity purposes).
  • Incarceration. See Commonwealth v. Rakes, 478 Mass. 22, 42–44 (2017) (evidence of defendant’s prior incarceration, including certificate of parole, VAX transportation sheet, and booking sheet page with attached photographs, along with his statement that he “wasn’t about to do any more time,” admissible to prove defendant’s identity and motive to kill victim).
  • Motive. See Commonwealth v. Gonsalves, 488 Mass. 827, 835–837 (2022) (evidence that defendant sold small amounts of marijuana relevant to show concern that victim was competing dealer as possible motive for murder); Commonwealth v. Welch, 487 Mass. 425, 443 (2021) (testimony concerning defendant’s OUI charge, including victim’s unwillingness to post bail, admissible to show deterioration of relationship, which provided motive for killing; evidence of text messages concerning work-related dispute and altercation that defendant blamed on victim also relevant to prove motive);  Commonwealth v. Peno, 485 Mass. 378, 387–396 (2020) (evidence of defendant’s prior interactions with her child relevant to her motive for fatal beating); Commonwealth v. Watt, 484 Mass. 742, 748 (2020) (evidence of prior shooting eleven days earlier properly admitted to show retaliatory motive for shooting; no danger that jury would improperly use earlier shooting as propensity or bad act evidence because neither defendant was alleged to have been shooter at earlier shooting).
  • Police Investigations. See Commonwealth v. Mullane, 445 Mass. 702, 708–710 (2006) (evidence of prior investigation into prostitution at commercial property properly admitted to prove property owner’s knowledge of illicit sexual activity occurring at property).
  • Prior Sexual Offenses. See Commonwealth v. Childs, 94 Mass. App. Ct. 67, 71–75, 78–79 (2018) (evidence of uncharged conduct was properly admitted to show that relationship between defendant and victim “was one of continuous sexual abuse” and to rebut any claim of accident or mistake where judge excluded “two most damaging incidents of uncharged conduct,” uncharged conduct did not overwhelm the evidence of charged conduct, and judge “forcefully limited” jury’s use of uncharged conduct through limiting instructions “before the victim’s testimony about the uncharged conduct, again after that testimony, and yet a third time in the final charge”).
  • Racial Animus. See Commonwealth v. Cruzado, 480 Mass. 275, 278–279 (2018) (defendant’s use of racial slur in reference to murder victim properly admitted to show animus toward African-Americans and therefore motive for killing). But see Commonwealth v. Bishop, 461 Mass. 586, 596–597 (2012) (“before a judge admits evidence that a defendant used this word to describe a man of color, the judge must be convinced that the probative weight of such evidence justifies this risk”).
  • Statements About Other Acts. See Commonwealth v. Sullivan, 436 Mass. 799, 809 (2002) (evidence that defendant stated that he liked to rob jewelry stores properly admitted to prove intent to commit robbery in felony-murder prosecution); Commonwealth v. Bradshaw, 86 Mass. App. Ct. 74, 76 (2014) (in prosecution for rape of child, defendant’s statement that he was attracted to young boys admissible for limited purpose of revealing his motive or intent).
  • Violent Interests or Conduct. See Commonwealth v. Veiovis, 477 Mass. 472, 482–486 (2017) (where evidence showed that unidentified perpetrator “enjoyed cutting the victims up,” amputation drawings from defendant’s home admissible to show identity, state of mind, and motive; drawings were not modus operandi evidence); Commonwealth v. Forte, 469 Mass. 469, 480 (2014) (instances of aggressive conduct in hours preceding murder to illustrate angry state of mind).
  • Weapons Evidence. Weapons evidence does not always raise Section 404(b) issues because possession and use of weapons can be lawful and therefore would not con-stitute a prior bad act. See Commonwealth v. Valentin, 474 Mass. 301, 307 (2016) (evidence of defendant’s lawful ownership of other firearms, ammunition, and buck knife was not relevant to jury’s determination of whether shootings at issue were committed with extreme atrocity or cruelty and should not have been admitted). Intro-duction of evidence that a defendant possessed a weapon prior to the charged crime creates a risk the jury will infer bad character or a propensity to commit the crime charged. See Commonwealth v. McGee, 467 Mass. 141, 156 (2014). Often, however, even lawful possession of firearms, or lawful firearms practices, can raise Sec-tion 404(b) concerns. See Commonwealth v. Tassinari, 466 Mass. 340, 352–354 (2013) (evidence of defendant’s lawful possession of numerous firearms and of his training and certification as firearms instructor admissible to show his carrying and storage practices and was relevant to Commonwealth’s theory of premeditation, par-ticularly whether defendant deliberately chose the two guns from his collection of fire-arms that he used to shoot victim, and to show access to and familiarity with each). The evidence should be excluded if its probative value is outweighed by the danger of unfair prejudice to the defendant. See McGee, 467 Mass. at 157–158; Commonwealth v. Barbosa, 463 Mass. 116, 122–123 (2012).

    Generally, evidence that the defendant possessed a weapon that could have been used to commit the charged crime is admissible, but evidence of a weapon that could not have been used in the charged crime is not admissible. Weapons evidence may also be admissible to rebut claims made by the defendant at trial or to show motive or state of mind.

    Weapon Could Have Been Used in the Crime. Evidence that the defendant possessed a weapon that could have been used to commit the crime is admissible to show that the defendant had the means to commit the crime. See, e.g., Commonwealth v. Brown, 477 Mass. 805, 820 (2017) (photographs taken a few weeks prior to crime showing defendant brandishing firearm used in commission of crime admissible); Barbosa, 463 Mass. at 122 (evidence of weapon that could have been used in the crime admissible in judge’s discretion); Commonwealth v. Ashman, 430 Mass. 736, 744 (2000); Commonwealth v. Toro, 395 Mass. 354, 356 (1985). The evidence need not establish that the defendant in fact used the weapon in the crime. See Commonwealth v. Vazquez, 478 Mass. 443, 449 (2017) (no abuse of discretion to admit evidence of prior possession of firearm absent definitive forensic evidence that it could not have been used in commission of the crime); Barbosa, 463 Mass. at 122. The evidence need not establish that the defendant possessed the weapon at the time the crime was committed. See Commonwealth v. Henley, 488 Mass. 95, 124–125 (2021) (evidence that defendant was present at an earlier shooting involving same weapon used to kill victim in murder case properly admitted to show defendant potentially had access to that firearm, even if he did not actually possess it at time of earlier shooting); Commonwealth v. Corliss, 470 Mass. 443, 450–451 (2015) (sixteen months before murder); Commonwealth v. McLaughlin, 352 Mass. 218, 229–230 (1967) (approximately one year after murder). See also Commonwealth v. DeJesus, 489 Mass. 292, 298–299 (2022) (video showing defendant holding and posturing with firearm admissible to show defendant had control of firearm); Commonwealth v. Holley, 478 Mass. 508, 532–534 (2017) (evidence of prior gun theft was relevant to show that defendant had means of committing the crime; risk that jury would use evidence to conclude that defendant “had a propensity to commit this particular crime was low” where type of crime charged in underlying matter was different).

    Weapon Could Not Have Been Used in the Crime. In general, evidence of a weapon that could not have been used in the crime should not be admitted. See Commonwealth v. Carter, 488 Mass. 191, 205–206 (2021) (error to admit evidence of defendant’s prior arrest for possession of firearm that was seized by police at that time and thus could not have been used in later murder even though it was of same caliber); Commonwealth v. Chalue, 486 Mass. 847, 872–873 (2021) (error to introduce photo-graphs of spiked baseball bat and hatchet because they could not have been used to commit the crimes); Commonwealth v. Collazo, 481 Mass. 498, 501–502 (2019) (error to admit evidence that defendant owned second firearm absent evidence connecting second firearm to the crime); Barbosa, 463 Mass. at 122–123 (evidence of firearm that could not have been used in the crime should not have been admitted). However, evidence of a firearm not connected to the crime may be admissible for the limited purpose of demonstrating that the defendant had access to, and knowledge of, firearms. Commonwealth v. Gibson, 489 Mass. 37, 45–47 (2022) (no abuse of discretion to admit defendant’s statements that he possessed firearms in days prior to shooting, as they were relevant to show his familiarity with and access to firearms and to impeach his previous denials); Commonwealth v. Pierre, 486 Mass. 418, 424 (2020); Commonwealth v. McGee, 467 Mass. 141, 156 (2014) (firearm that could not have been used to shoot victim, but was offered to establish that defendant was familiar with firearms, admissible only if accompanied by limiting instruction that it could not be taken as propensity evidence).

    Limiting Instructions When Weapons Evidence Is Admitted. Where there is evidence that the defendant possessed a weapon that could have been used in the commission of the crime, a limiting instruction is not required. Holley, 478 Mass. at 533 n.25. In contrast, where a weapon could not have been used in the commission of the crime, a limiting instruction to the jury as to the proper use of the evidence is “often” required. Id.

    Other Permissible Uses. Weapons evidence may be admissible to rebut the defendant’s claims at trial. See Commonwealth v. Howard, 479 Mass. 52, 66–67 (2018) (testimony that defendant had gun in vehicle before victim was hired admissible to rebut defendant’s claim that he had brought gun to work due to fear of victim). It may also be admissible to show motive or state of mind. See Commonwealth v. Don, 483 Mass. 697, 713–714 (2019) (defendant’s attempt to purchase firearm properly admitted to show motive for waiting to carry out shooting until weapon was acquired); Commonwealth v. Rutherford, 476 Mass. 639, 649 (2017) (uncharged conduct involving possession of weapons permissible to show defendant’s state of mind; prejudicial impact limited by prompt and thorough limiting instruction).

Section 405. Methods of proving character

(a) By reputation. Except as provided in (b) and (c), when evidence of a person’s character or a character trait is admissible, it may be proved by testimony about the person’s reputation only. On cross-examination of the character witness, the court may allow impeachment by an inquiry into relevant specific instances of the person’s conduct.

(b) By specific instances of conduct. When a person’s character or a character trait is an essential element of a charge, claim, or defense, the character or trait may also be proved by relevant specific instances of the person’s conduct.

(c) By violent character of the victim. See Section 404(a)(2), Character Evidence; Crimes or Other Acts: Character Evidence: Exceptions for a Defendant or Victim in a Criminal Case.


Subsection (a). This subsection is derived from Commonwealth v. Roberts, 378 Mass. 116, 129 (1979), and Commonwealth v. Piedra, 20 Mass. App. Ct. 155, 160 (1985). Character may only be introduced through evidence of general reputation, except as provided by G. L. c. 233, § 21 (evidence of person’s prior conviction is admissible to impeach credibility), and Section 609, Impeachment by Evidence of Conviction of Crime. See Commonwealth v. Binkiewicz, 342 Mass. 740, 755 (1961). Unlike Federal law, general reputation cannot be proven by evidence of personal opinions or isolated acts. Commonwealth v. Walker, 442 Mass. 185, 198–199 (2004); Commonwealth v. Benjamin, 430 Mass. 673, 678 n.6 (2000). Reputation evidence must be based on one’s reputation in the community or at that person’s place of work or business. Walker, 442 Mass. at 198. See G. L. c. 233, § 21A (work or business); Commonwealth v. Dockham, 405 Mass. 618, 631 (1989) (community). A witness’s testimony must be based on the witness’s knowledge of the person’s reputation in the community, not of the opinions of a limited number of people. Commonwealth v. Gomes, 11 Mass. App. Ct. 933, 933–934 (1981); Commonwealth v. LaPierre, 10 Mass. App. Ct. 871, 871 (1980). Contrast Walker, 442 Mass. at 197–19 (declining to adopt Proposed Mass. R. Evid. 405[a], which would permit character witnesses to testify not only about the defendant’s reputation in the community, but also about their own opinion of the defendant’s character).

A witness who testifies to a person’s reputation is then subject to cross-examination for impeachment purposes “as to his awareness of rumors or reports of prior acts of misconduct by the [person], including prior arrests or convictions, that are inconsistent or conflict with the character trait to which the witness has testified.” Commonwealth v. Montanino, 27 Mass. App. Ct. 130, 136 (1989). The prosecution may also present rebuttal evidence of a defendant’s bad reputation. Commonwealth v. Maddocks, 207 Mass. 152, 157 (1910). 

Subsection (b). Specific act evidence may be admitted in cases where character is directly at issue. See Commonwealth v. Buswell, 468 Mass. 92, 104–105 (2014) (entrapment defense); Leone v. Doran, 363 Mass. 1, 13–14, modified on other grounds, 363 Mass. 886 (1973) (negligent entrustment actions); Foster v. Loft, Inc., 26 Mass. App. Ct. 289, 290–291 (1988) (negligent hiring actions).

Subsection (c). See Notes to Section 404(a)(2), Character Evidence; Crimes or Other Acts: Character Evidence: Exceptions for a Defendant or Victim in a Criminal Case.

Section 406. Routine practice of a business; habit of an individual

(a) Routine practice of a business. Evidence of the routine practice of a business organization or of one acting in a business capacity, if established through sufficient proof, may be admitted to prove that on a particular occasion the organization or individual acted in accordance with the routine practice.

(b) Individual habit. Evidence of an individual’s personal habit is not admissible to prove action in conformity with the habit on a particular occasion.


This section is derived from Palinkas v. Bennett, 416 Mass. 273, 276–277 (1993). “A habit is a regular response to a repeated situation with a specific type of conduct.” Id. at 277. A trial judge has discretion in distinguishing between a routine practice of a business and a personal habit. Id.

Subsection (a). Evidence of a routine practice or custom of a business is admissible to prove that the business acted in conformity therewith. See, e.g., Commonwealth v. Torrealba, 316 Mass. 24, 30 (1944) (custom of selling goods with receipt); Santarpio v. New York Life Ins. Co., 301 Mass. 207, 210 (1938) (custom of submitting insurance applications); Prudential Trust Co. v. Hayes, 247 Mass. 311, 314–315 (1924) (custom of sending letters).

“Massachusetts draws a distinction between evidence of personal habit and evidence of business habit or custom. Evidence of a person’s habits is inadmissible to prove whether an act was performed in accordance with the habit. . . . [F]or the purpose of proving that one has or has not done a particular act, it is not competent to show that he has or has not been in the habit of doing other similar acts. Despite this rule, evidence of business habits or customs is admissible to prove that an act was performed in accordance with the habit. . . . The fact that a habit is done by only one individual does not bar it from being a business habit.” (Quotation and citations omitted.)

Palinkas v. Bennett, 416 Mass. 273, 276 (1993). See Ladd v. Scudder Kemper Invs., Inc., 433 Mass. 240, 243 (2001) (business includes sole proprietorship); Mumford v. Coghlin, 249 Mass. 184, 188 (1924) (notary’s procedure of protesting notes); Mayberry v. Holbrook, 182 Mass. 463, 465 (1903) (physician’s records of rendering services). A person is competent to testify about a routine business practice if the person is familiar with the practice. O’Connor v. SmithKline Bio-Science Labs., Inc., 36 Mass. App. Ct. 360, 365 (1994). Cf. Section 601, Competency.

Subsection (b). Unlike Federal practice, evidence of an individual’s personal habit is not admissible to prove action in conformity therewith. See Davidson v. Massachusetts Cas. Ins. Co., 325 Mass. 115, 122 (1949). See also Commonwealth v. Wilson, 443 Mass. 122, 138 (2004) (owner’s personal, not business, habit of locking door would be inadmissible); Figueiredo v. Hamill, 385 Mass. 1003, 1004–1005 (1982) (evidence that pedestrian accident victim habitually acted in reckless manner properly excluded).

Habit Versus Character. The distinction between habit and character is often difficult to make: habit “is the person’s regular practice of meeting a particular kind of situation with a specific type of conduct,” whereas character “is a generalized description of one’s disposition, or of one’s disposition in respect to a general trait, such as honesty, temperance, or peacefulness.” Figueiredo, 385 Mass. at 1004, quoting Advisory Committee Notes, Fed. R. Evid. 406.

Section 407. Subsequent remedial measures

(a) Prohibited uses. When measures are taken that would have made an earlier injury or harm less likely to occur, evidence of the subsequent measures is not admissible to prove negligence or culpable conduct in connection with the event.

(b) Exceptions. The court may admit this evidence for another purpose, such as impeachment or, if disputed, proving ownership, control, or the feasibility of precautionary measures.


This section is derived from doCanto v. Ametek, Inc., 367 Mass. 776, 780 (1975), and Simmons v. Monarch Mach. Tool Co., 413 Mass. 205, 214 (1992), abrogated on other grounds by Vassallo v. Baxter Healthcare Corp., 428 Mass. 1, 20–23 (1998).

Subsection (a). Evidence of the following subsequent remedial measures has been excluded: sanding stairs or the street, Barnett v. Lynn, 433 Mass. 662, 666 n.5 (2001); National Laundry Co. v. Newton, 300 Mass. 126, 127 (1938); installation of a flashing light signal at a railroad crossing, Ladd v. New York, N.H. & H.R. Co., 335 Mass. 117, 120 (1956); repositioning a barrier across a sidewalk, Manchester v. City of Attleboro, 288 Mass. 492, 493 (1934); and precautions taken to avoid another collapse of a trench, Shinners v. Proprietors of Locks & Canals on Merrimack River, 154 Mass. 168, 169–171 (1891). The rule has been extended to exclude the results of a defendant’s investigation into the causes of an accident. See Martel v. Massachusetts Bay Transp. Auth., 403 Mass. 1, 5 (1988).

Subsection (b). Evidence of a subsequent remedial measure is admissible to prove issues other than negligence. See Santos v. Chrysler Corp., 430 Mass. 198, 207–208 (1999) (manufacturer on notice of product defect); Schaeffer v. General Motors Corp., 372 Mass. 171, 175–176 (1977) (feasibility of giving adequate warnings); doCanto v. Ametek, Inc., 367 Mass. 776, 780–781 (1975) (feasibility of safety improvements); Reardon v. Country Club at Coonamessett, Inc., 353 Mass. 702, 704–705 (1968) (knowledge of the danger at time of accident); Finn v. Peters, 340 Mass. 622, 625 (1960) (ownership or control over the premises). Evidence of a pre­accident remedial measure is also admissible for the same purposes. See doCanto, 367 Mass. at 780; Torre v. Harris-Seybold Co., 9 Mass. App. Ct. 660, 676 (1980).

When a party offers evidence of remedial measures to prove an issue other than negligence, the judge should determine whether it is relevant, see Section 402, General Admissibility of Relevant Evidence, and, if so, whether the probative value of the evidence is substantially outweighed by the danger of unfair prejudice, see Section 403, Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reason. If the judge admits the evidence, the judge should, upon request, instruct the jury that the evidence cannot be considered as an admission of negligence or fault. See Section 105, Limiting Evidence That Is Not Admissible Against Other Parties or for Other Purpose; Section 403, Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reason.

Section 408. Compromise offers and negotiations in civil cases

(a) Prohibited uses

Evidence of the following is not admissible—on behalf of any party—either to prove or disprove the validity or amount of a disputed claim:

(1) furnishing, promising, or offering—or accepting, promising to accept, or offering to accept—a valuable consideration in compromising or attempting to compromise the claim or any other claim, and

(2) conduct or a statement made during compromise negotiations about the claim.

(b) Exceptions 

The court may admit this evidence for another purpose, such as proving a witness’s bias or prejudice or other state of mind, negating a contention of undue delay, or proving an effort to obstruct a criminal investigation or prosecution.


This section is derived from Proposed Mass. R. Evid. 408, which was adopted in principle in Morea v. Cosco, Inc., 422 Mass. 601, 603–604 (1996). But see Zucco v. Kane, 439 Mass. 503, 510 (2003) (“even if we were to adopt the segment of [Proposed Mass. R. Evid. 408] pertaining to statements made during negotiations . . .”). “This rule is founded in policy, that there may be no discouragement to amicable adjustment of disputes, by a fear, that if not completed, the party amicably disposed may be injured” (quotation and citation omitted). Strauss v. Skurnik, 227 Mass. 173, 175 (1917).    

Evidence that a defendant compromised or offered to compromise a claim arising from the same transaction with a third person not a party to the action is not admissible to prove the defendant’s liability to the plaintiff. Murray v. Foster, 343 Mass. 655, 659–660 (1962); Ricciutti v. Sylvania Elec. Prods., Inc., 343 Mass. 347, 349 (1961). A closing agreement between the Internal Revenue Service and the plaintiff constitutes a settlement of a claim and is inadmissible on the question of liability. National Grid Holdings, Inc. v. Commissioner of Revenue, 89 Mass. App. Ct. 506, 520 (2016). In mitigation of damages, however, a defendant is entitled to the admission of evidence of a settlement amount between the plaintiff and a joint tortfeasor on account of the same injury, but such evidence is for the judge only and not the jury to consider. See Morea, 422 Mass. at 602–603.    

Evidence of a compromise or offer to compromise may be admitted (with limiting instructions) for a purpose other than to prove liability or the invalidity of the claim, such as to impeach the credibility of a witness. See Zucco, 439 Mass. at 509–510; Cottam v. CVS Pharmacy, 436 Mass. 316, 327–328 (2002). For example, in an employment discrimination case, statements contained in settlement correspondence were properly admitted as probative of the employer’s state of mind. Dahms v. Cognex Corp., 455 Mass. 190, 199 (2009). The same principle may apply to the admission of settlement negotiations in agency proceedings at the Massachusetts Commission Against Discrimination (MCAD). Silve & Hanna, Inc. v. Massachusetts Comm’n Against Discrimination, 100 Mass. App. Ct. 432, 441–442 (2021) (statements made during MCAD proceeding were admissible, as they were not offered to prove or disprove validity or value of discrimination claim, which was only claim pending at time of statement).   

“[C]ommunications may constitute inadmissible compromise offers any time after an actual dispute or difference of opinion arises regarding a party’s liability for or the amount of a claim, regardless of whether one of the parties has explicitly threatened litigation.” Filbey v. Carr, 98 Mass. App. Ct. 455, 455 (2020).  Whether a particular conversation constitutes a settlement offer or admission may require the resolution of conflicting testimony and is a preliminary question for the trial judge. Marchand v. Murray, 27 Mass. App. Ct. 611, 615 (1989). See Section 104(a), Preliminary Questions: In General. A unilateral statement that a party will “take care of” a loss will be treated as an admission of liability, not an offer to compromise. See, e.g., Cassidy v. Hollingsworth, 324 Mass. 424, 425–426 (1949) (defendant’s statement made after accident that “I guess I owe you a fender” held to be admission of liability); Bernasconi v. Bassi, 261 Mass. 26, 28 (1927) (defendant’s statement “I fix it up, everything,” held to be admission of liability); Dennison v. Swerdlove, 250 Mass. 507, 508–509 (1925) (defendant’s statement immediately after automobile accident that he would “adjust the damage to your car” was an admission of fault). An expression of sympathy does not qualify as either an offer to compromise or an admission of liability. See Section 409, Expressions of Sympathy in Civil Cases; Offers to Pay Medical and Similar Expenses.   

Admissions made on the face of settlement documents are admissible. Zucco, 439 Mass. at 510–511. Where, however, the parties “understood at [the time of the negotiations] that what was said at that time was said without prejudice to either party,” admissions of fact will not be admissible at trial (quotation omitted). Garber v. Levine, 250 Mass. 485, 490 (1925). However, evidence of conduct or statements made during such negotiations on collateral matters are admissible for their truth. See Wagman v. Ziskind, 234 Mass. 509, 510–511 (1920); Harrington v. Lincoln, 70 Mass. 563, 567 (1855); Dickinson v. Dickinson, 50 Mass. 471, 474–475 (1845). Cf. G. L. c. 233, § 23D (admissibility of benevolent statements, writings, or gestures relating to accident victims); Section 514, Mediation Privilege (under G. L. c. 233, § 23C, any communications made in course of mediation proceedings and in presence of mediator are not admissible, except where mediating labor disputes).    

Cross-Reference: Section 403, Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reasons.

Section 409. Expressions of sympathy in civil cases; offers to pay medical and similar expenses

(a) Expressions of sympathy in civil cases. Statements, writings, or benevolent gestures expressing sympathy or a general sense of benevolence relating to the pain, suffering, or death of a person involved in an accident and made to such person or to the family of such person shall be inadmissible as evidence of an admission of liability in a civil action. 

(b) Payment of medical and similar expenses. Evidence of furnishing, promising to pay, or offering to pay medical, hospital, or similar expenses resulting from an injury is not admissible to prove liability for the injury.

(c) Medical malpractice claims. Any expression of benevolence, regret, apology, sympathy, commiseration, condolence, compassion, mis­take, error, or a general sense of concern made by a health care provider, a facility, or an employee or agent of a health care provider or facility to the patient, a relative of the patient, or a representative of the patient, and that relates to an unanticipated outcome, shall be inadmissible as evidence in a medical malpractice action, unless the maker of the statement, or a defense expert witness, when questioned under oath during the litigation about facts and opinions regarding any mistakes or errors that occurred, makes a contradictory or inconsistent statement as to material facts or opinions, in which case the statements and opinions made about the mistake or error shall be admissible for all purposes.


Subsection (a). This subsection is taken verbatim from G. L. c. 233, § 23D. See Gallo v. Veliskakis, 357 Mass. 602, 606 (1970); Casper v. Lavoie, 1 Mass. App. Ct. 809, 810 (1973). See also Denton v. Park Hotel, Inc., 343 Mass. 524, 528 (1962) (expressions of sympathy have “no probative value as an admission of responsibility or liability,” and “[c]ommon decency should not be penalized by treating such statements as admissions”). But see Nunes v. Duffy, 101 Mass. App. Ct. 460, 463 (2022) (only statements of sorrow or apology are inadmissible, not admissions of fault or liability).

Subsection (b). This subsection is derived from Gallo v. Veliskakis, 357 Mass. 602, 606 (1970), and Wilson v. Daniels, 250 Mass. 359, 364 (1924). This subsection is based on the public policy of encouraging a person to act “as a decent citizen with proper humane sensibilities” without having to admit liability (citations omitted). Lyons v. Levine, 352 Mass. 769, 769 (1967). Statements that accompany offers of payment are not excluded under this section if otherwise admissible. See Gallo, 357 Mass. at 606 (defendant’s statements of sympathy and that he would take care of the medical bills were inadmissible because they “had no probative value as an admission of responsibility or liability” [citations omitted]). Cf. G. L. c. 231, § 140B (evidence of advanced payments to injured person by insurer is not admissible to prove liability).

Subsection (c). This subsection is taken nearly verbatim from G. L. c. 233, § 79L (effective November 4, 2012).

(a) Prohibited uses 

In a civil or criminal case, evidence of the following is not admissible against the defendant who made the plea or participated in the plea discussions:

(1) a guilty plea that was later withdrawn or rejected,

(2) a nolo contendere plea,

(3) an admission to sufficient facts that was later withdrawn or rejected, or

(4) a statement made in connection with, and relevant to, any of the foregoing.

(b) Exception 

The court may admit a statement described in Subsection (a)(4) in a criminal proceeding for perjury if the defendant made the statement under oath, on the record, and with counsel present.


This section is taken from Mass. R. Crim. P. 12(f). Rule 12(f) bars the use in evidence in any criminal or civil proceeding of a withdrawn guilty plea, a withdrawn plea of nolo contendere, a withdrawn admission of sufficient facts, or a withdrawn offer of the same. See also LePage v. Bumilia, 407 Mass. 163, 165 n.3 (1990) (paying parking ticket is akin to a plea of nolo contendere, which “cannot be used in a later civil or criminal trial”). See Mass. R. Crim. P. 12(f). But see Aetna Cas. & Sur. Co. v. Niziolek, 395 Mass. 737, 747–750 (1985) (guilty plea, not withdrawn, is an admission of material facts alleged in complaint or indictment and is admissible as evidence of an admission in subsequent civil case without having preclusive effect); Hopkins v. Medeiros, 48 Mass. App. Ct. 600, 613 (2000) (“An admission to sufficient facts may be introduced against the defendant in a subsequently litigated civil suit arising out of the same incident on the theory that the proceeding was the functional equivalent of a guilty plea, with the same degree of finality” [quotations and citation omitted].); Section 801(d)(2)(A), Definitions: Statements That Are Not Hearsay: An Opposing Party’s Statement. Except in a prosecution for perjury, the bar applies to any statement made in the course of the plea negotiations as long as it is relevant to the negotiations. See Mass. R. Crim. P. 12(f).

Unlike Fed. R. Evid. 410, the statements in question need not have been made to an attorney for the prosecuting authority to qualify for exclusion. See Commonwealth v. Wilson, 430 Mass. 440, 442–443 (1999). Rule 12(f) excludes only statements made during “plea negotiations,” not the apparently broader “plea discussions” referred to in Fed. R. Evid. 410. Id. at 443 (while statements to a detective could be excluded under Mass. R. Crim. P. 12(f), the statements were nonetheless admissible because they were not made during plea negotiations). On the issue of what constitutes plea negotiations, see Commonwealth v. Smiley, 431 Mass. 477, 482 n.3 (2000) (holding there were no plea negotiations where prosecutor made no promises, commitments, or offers and defendant did not give his statement only in consideration of a benefit offered by prosecutor), and Commonwealth v. Luce, 34 Mass. App. Ct. 105, 111–112 (1993) (meetings between defendant, counsel, and government officers did not constitute plea bargaining).

A refusal to plead guilty is not admissible when offered by the defendant to prove consciousness of innocence. See Commonwealth v. DoVale, 57 Mass. App. Ct. 657, 662–663 (2003).

Cross-Reference: Section 529, Protections Regarding Diversion Programs.

Section 411. Insurance

Evidence that a person or entity was or was not insured against liability is not admissible to prove whether the person or entity acted negligently or otherwise wrongfully. But the court may admit evidence of insurance for another purpose, such as proving a witness’s bias or prejudice or proving agency, ownership, or control.


The first sentence of this section is derived from Goldstein v. Gontarz, 364 Mass. 800, 807–814 (1974) (extensive discussion of principles and authorities), and Leavitt v. Glick Realty Corp., 362 Mass. 370, 372 (1972). The exclusion covers (1) evidence offered by the plaintiff that the defendant is insured, (2) evidence offered by the defendant that the plaintiff has received third-party compensation for an injury, (3) evidence offered by the defendant that the defendant is not protected by insurance, and (4) evidence offered by the plaintiff that the plaintiff has no insurance or other coverage for the loss. Goldstein, 364 Mass. at 808–810; David v. Kelly, 100 Mass. App. Ct. 443, 450 (2021) (where receipt of workers’ compensation benefits suggested defendant’s dog bit plaintiff mail carrier, error to admit evidence of benefits awarded to plaintiff and amount of those benefits; to rebut jury misconception about double recovery, simply instructing jury on plaintiff’s obligation to repay workers’ compensation fund if damages awarded would have sufficed).

The second sentence of this section is derived from Fed. R. Evid. 411 and Proposed Mass. R. Evid. 411 and is consistent with Massachusetts law. Evidence of insurance coverage may be admissible where the issue of control over the covered premises is disputed because the jury could properly infer “that the defendants would not have deemed it prudent to secure indemnity insurance on [an area] not within their control, or for the careless management or defective condition of which they could not be held responsible.” Perkins v. Rice, 187 Mass. 28, 30 (1904). A blanket insurance policy covering more than one location is not, however, admissible to show control. See Camerlin v. Marshall, 411 Mass. 394, 398 (1991).

Evidence of insurance coverage or lack thereof may be admissible to establish the bias of a witness. Goldstein, 364 Mass. at 812. See Corsetti v. Stone Co., 396 Mass. 1, 16–21 (1985); McDaniel v. Pickens, 45 Mass. App. Ct. 63, 66–67 (1998); Commonwealth v. Danis, 38 Mass. App. Ct. 968, 968 (1995). See also Masters v. Khuri, 62 Mass. App. Ct. 467, 471–472 (2004); Harris-Lewis v. Mudge, 60 Mass. App. Ct. 480, 487–488 (2004).

Inadmissibility Due to Prejudicial Effect. Evidence of an insurance policy may still be excluded where its prejudicial effect substantially outweighs its probative value after contemplating the effectiveness of a limiting instruction. See Goldstein v. Gontarz, 364 Mass. 800, 812–813 (1974). See also Shore v. Shore, 385 Mass. 529, 530–532 (1982) (appropriate instructions could have cured possible prejudice from excluded evidence of insurance policy). But see McDaniel v. Pickens, 45 Mass. App. Ct. 63, 70 (1998) (raising but not reaching the issue of “whether jurors have attained to such a level of sophistication that they can take insurance and related things in stride when properly instructed” [citations omitted]).

Collateral Source Rule. Evidence of collateral source payments is generally not admissible to reduce the amount of damages recoverable, but may be admissible if probative of a relevant issue, such as impeaching the plaintiff’s credibility or showing motive. See Corsetti v. Stone Co., 396 Mass. 1, 16–21 (1985); Savers Prop. & Cas. Ins. Co. v. Admiral Ins. Agency, Inc., 61 Mass. App. Ct. 158, 165–166 (2004), and cases cited; Rolanti v. Boston Edison Corp., 33 Mass. App. Ct. 516, 524–‌525 (1992).

The full amount of a medical or hospital bill is admissible as evidence of the reasonable value of the services rendered to the injured person, even where the amount actually paid by a private or public insurer is less than that amount. The actual amount paid by insurance is not admissible, but the defendant may offer evidence to establish the range of payments accepted by that provider for that particular service. Law v. Griffith, 457 Mass. 349, 353–354 (2010). See G. L. c. 233, § 79G. The court may instruct the jury that any amounts paid by insurance are subject to recoupment by the payor. Scott v. Garfield, 454 Mass. 790, 801 (2009). The amounts actually paid to the health providers by the health insurer must be redacted on medical bills admitted into evidence. Id.

Unless it is relevant for some other purpose, evidence of a settlement with another defendant is not admissible to reduce the amount of damages, but the court should make the appropriate deduction after the verdict. Morea v. Cosco, Inc., 422 Mass. 601, 603 (1996). In most cases, the verdict in a motor vehicle liability case will be reduced by the amount of any personal injury protection benefits received by the plaintiff. G. L. c. 90, § 34M. In a medical malpractice case, the defendant may, at a post-verdict hearing, offer evidence to the court as to the amount of medical bills that have been covered by insurance. The amount of any such bills, less the amount of any premiums paid by the plaintiff for one year prior to the accrual of the cause of action, shall be deducted from the itemized verdict. This procedure does not apply to any payor who has subrogation rights based on any Federal law. G. L. c. 231, § 60G.

Insurance Subrogation. It was an abuse of discretion to broadly allow matters of insurance to be introduced in evidence and otherwise referenced at the trial of a case brought by an insurer in the name of its insured to whose rights it was subrogated, as permitted by Mass. R. Civ. P. 17(a). Antoniadis v. Basnight, 99 Mass. App. Ct. 172, 178 (2021).

Section 412. Sexual behavior or sexual reputation (Rape-shield law)

(a) Prohibited uses 

Except as otherwise provided, the following evidence is not admissible in a civil or criminal proceeding involving alleged sexual misconduct: 

(1) evidence offered to prove that a victim engaged in other sexual behavior or 

(2) evidence offered to prove a victim’s sexual reputation, or

(3) evidence of a victim’s sexual orientation to prove consent. 

(b) Exceptions

The court may admit the following evidence in a criminal case: 

(1) evidence of specific instances of a victim’s sexual behavior with respect to the person accused of the sexual misconduct; 

(2) evidence of specific instances of a victim’s recent sexual behavior if offered to prove that someone other than the defendant was the source of any physical feature, characteristic, or condition of the victim; and 

(3) evidence whose exclusion would violate the defendant’s constitutional rights. 

(c) Procedure to determine admissibility

(1) Motion. If a party intends to offer evidence under Subsection (b), the party must file a motion and an offer of proof. 

(2) Hearing. Before admitting evidence under this section, the court must conduct a hearing, in open court, unless the judge makes appropriate findings to support courtroom closure. The judge must find that the weight and relevance (probative value) of the evidence is sufficient to outweigh its prejudicial effect to the victim. The court must make and file a written finding, but its finding must not be made available to the jury. 

(d) Definition of “victim” 

In this section, “victim” includes an alleged victim.


Subsections (a)(1) and (2). These subsections are derived from G. L. c. 233, § 21B, and Commonwealth v. Domaingue, 397 Mass. 693, 696–700 (1986). Evidence of a victim’s sexual conduct cannot be introduced at a trial for any of the crimes on this nonexhaustive list: G. L. c. 265, §§ 13B, 13F, 13H, 22, 22A, 23, 24, and 24B, and G. L. c. 272, § 29A. Evidence in the form of reputation or opinion is not admissible to prove the complainant’s reputation for unchastity. See Commonwealth v. Joyce, 382 Mass. 222, 227–‌228 (1981) (the rape-shield statute “reverses the common law rule under which evidence of the complainant’s general reputation for unchastity was admissible” [citation omitted]). Note that the cases use the terms “victim” and “complainant” interchangeably.

“The rape-shield statute is principally designed to prevent defense counsel from eliciting evidence of the victim’s promiscuity as part of a general credibility attack.” Commonwealth v. Fitzgerald, 412 Mass. 516, 523 (1992). “The policy rationale for this law is that evidence of the victim’s prior sexual conduct might divert attention from the alleged criminal acts of the defendant, inappropriately putting the victim on trial” (citations omitted). Commonwealth v. Houston, 430 Mass. 616, 621 (2000). In Commonwealth v. Parent, 465 Mass. 395, 404–405 (2013), the Supreme Judicial Court held that the trial judge did not abuse her discretion in ruling that a witness who overheard the victim speaking on a cell phone could testify that the victim invited a boy to visit her on the evening of the alleged sexual assault but would not be permitted to testify that the victim was overheard promising to engage in oral sex.

Subsection (a)(3). This subsection is derived from Commonwealth v. Butler, 97 Mass. App. Ct. 223, 237 (2020) (victim’s sexual orientation not relevant to consent).

Subsection (b)(1). This subsection is taken from G. L. c. 233, § 21B. The complainant’s prior sexual activity with the defendant may be relevant to the issue of consent, particularly to show the complainant’s emotion to that particular defendant. Commonwealth v. Grieco, 386 Mass. 484, 488 (1982). Cf. Commonwealth v. Fionda, 33 Mass. App. Ct. 316, 321–322 (1992) (provocative conversation and kissing on prior occasion not probative of consent to intercourse on later occasion). 

Subsection (b)(2). This subsection is taken from G. L. c. 233, § 21B.  Prior acts with another person may be relevant to establishing an alternative cause for the complainant’s physical condition. See, e.g., Commonwealth v. Fitzgerald, 402 Mass. 517, 521–522 (1988), S.C., 412 Mass. 516, 521–525 (1992) (presence of sperm where defendant underwent a vasectomy); Commonwealth v. Cardoza, 29 Mass. App. Ct. 645, 648–649 (1990) (presence of foreign pubic hair not belonging to defendant should have been admitted). 

Subsection (b)(3). This subsection is derived from Commonwealth v. Joyce, 382 Mass. 222, 227–229 (1981). While a defendant has a constitutional right to present a full defense, that right is not unfettered. See Commonwealth v. Thevenin, 33 Mass. App. Ct. 588, 592–593 (1992). To overcome the restrictions contained in the rape-shield statute, the defense must be “based on more than a vague hope or speculation,” and a defendant cannot conduct “an unbounded or freewheeling cross-examination” that invites the jury to conjecture. Id.  

“Where evidence of bias is available by other means, no evidence of the complainant’s prior sexual history should be admitted.” Commonwealth v. Gagnon, 45 Mass. App. Ct. 584, 589 (1998). See also Commonwealth v. Pyne, 35 Mass. App. Ct. 36, 38 (1993), citing Commonwealth v. Elder, 389 Mass. 743, 751 nn.11–12 (1983). Cf. Commonwealth v. Stockhammer, 409 Mass. 867, 875 (1991) (specific act evidence may be used to demonstrate the complainant’s bias or motive to fabricate). Evidence may be used to show that the complainant made prior false allegations of rape or abuse. See Commonwealth v. Bohannon, 376 Mass. 90, 94–95 (1978) (evidence admissible where witness was the complainant at trial, consent was central issue, complainant’s testimony was inconsistent and confused, and there was independent basis for concluding that prior allegations were false). Cf. Commonwealth v. Talbot, 444 Mass. 586, 590–591 (2005); Commonwealth v. Blair, 21 Mass. App. Ct. 625, 626–629 (1986). A defendant may introduce evidence that a complainant has been subjected to past sexual abuse to explain the complainant’s inappropriate knowledge of sexual matters. See Commonwealth v. Ruffen, 399 Mass. 811, 814–817 (1987). See also Commonwealth v. Beaudry, 445 Mass. 577, 580–586 (2005). A trial judge has discretion to admit evidence of a complainant’s prior conviction for a sexual offense, but must take into consideration the objectives of the rape-shield statute. See Commonwealth v. Harris, 443 Mass. 714, 723–728 (2005) (harmonizing G. L. c. 233, §§ 21 and 21B). “The judge must determine whether the weight and relevance of the proffered evidence of bias or motive to lie is sufficient to outweigh its prejudicial effect to the victim” (internal citation omitted). Commonwealth v. Noj, 76 Mass. App. Ct. 194, 198–199 (2010). See also Commonwealth v. Thomas, 89 Mass. App. Ct. 422, 425–427 (2016) (no error in excluding rape victim’s prior convictions for “prostitution-related offenses” where “nothing about the facts” gave victim motive to lie, and case did not involve consent defense).

Conversely, “[i]n the exercise of this discretion a trial judge should consider the important policies underlying the rape-shield statute. He should exclude evidence of specific instances of a complainant’s sexual conduct in so far [sic] as that is possible without unduly infringing upon the defendant’s right to show bias.” Commonwealth v. Joyce, 382 Mass. 222, 231 (1981). 

Subsection (c). This subsection is derived from G. L. c. 233, § 21BCommonwealth v. Jones, 472 Mass. 707, 720–731 (2015); and  Commonwealth v. Harris, 443 Mass. 714, 721 (2005). See Commonwealth v. Cortez, 438 Mass. 123, 129–130 (2002); Commonwealth v. Joyce, 382 Mass. 222, 232–233 (1981) (Braucher, J., concurring).    

In Commonwealth v. Jones, 472 Mass. 707 (2015), the Supreme Judicial Court held that the Sixth Amendment right to a public trial applies to a rape-shield hearing. Despite the language of  G. L. c. 233, § 21B, before closing the courtroom, the court must make case-specific findings in accordance with the four-part test articulated in Waller v. Georgia, 467 U.S. 39, 48 (1984):

“[1] the party seeking to close the hearing must advance an overriding interest that is likely to be prejudiced; [2] the closure must be no broader than necessary to protect that interest; [3] the trial court must consider reasonable alternatives to closing the proceeding; and [4] it must make findings adequate to support the closure.”

Cross-Reference: Section 403, Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reason; Note “Validity of Claim of Privilege” to Section 511(b), Privilege Against Self-Incrimination: Privilege of a Witness.

Section 413. First complaint of sexual assault

(a) Admissibility of first complaint. Testimony by the recipient of a complainant’s first complaint of an alleged sexual assault regarding the fact of the first complaint and the circumstances surrounding the making of that first complaint, including details of the complaint, is admissible for the limited purpose of assisting the jury in determining whether to credit the complainant’s testimony about the alleged sexual assault, not to prove the truth of the allegations.

(b) Admissibility of additional reports of a sexual assault under an alternative evidentiary basis. When otherwise admissible testimony or evidence other than the first complaint includes or implies that a report of a sexual assault was made, it may be admitted only if the trial judge determines that (1) it serves an evidentiary purpose other than to corroborate the testimony of the alleged victim and (2) its probative value outweighs its prejudicial effect.


Subsection (a). This subsection is taken nearly verbatim from Commonwealth v. King, 445 Mass. 217, 218–219 (2005), cert. denied, 546 U.S. 1216 (2006). In Commonwealth v. King, the Supreme Judicial Court replaced the doctrine of “fresh complaint” with that of “first complaint.” Id. at 241–248. See also Commonwealth v. Aviles, 461 Mass. 60, 71 (2011) (reaffirming the first complaint doctrine and explaining that it is not an “evidentiary rule” but rather a “body of governing principles to guide a trial judge on the admissibility of first complaint evidence”).

“The doctrine seeks to balance the interest of two competing concerns: that a complainant (who . . . may be still a child) has her credibility fairly judged on the specific facts of the case rather than unfairly by misguided stereotypical thinking; and that the defendant receive a trial that is free from irrelevant and potentially prejudicial testimony.”

Commonwealth v. Arana, 453 Mass. 214, 228 (2009).

“Under the new doctrine . . . the recipient of a complainant’s first complaint of an alleged sexual assault may testify about the fact of the first complaint and the circumstances surrounding the making of that first complaint. The witness may also testify about the details of the complaint. The complainant may likewise testify to the details of the first complaint (i.e., what she told the first complaint witness), as well as why the complaint was made at that particular time. Testimony from additional complaint witnesses is not admissible.”

King, 445 Mass. at 218–219.

The first complaint rule not only applies to statements of the complaining witness, as a “neutral” rule of evidence, it is applicable whenever the credibility of an allegation of sexual assault is at issue. Therefore, the first complaint doctrine is available to the defendant in a sexual assault prosecution who claims to have been sexually assaulted by the complainant, because “such a defendant faces the same credibility obstacle in proving his or her defense as the Commonwealth faces in proving the indictment.” Commonwealth v. Mayotte, 475 Mass. 254, 260 (2016).

Role of the Trial Judge. The following sections of this Note amplify the doctrinal framework set forth in the guideline. Regarding this “body of governing principles,” the Supreme Judicial Court has explained that the trial judge “is in the best position to determine the scope of admissible evidence, keeping in mind the underlying goals of the first complaint doctrine, our established first complaint jurisprudence, and our guidelines for admitting or excluding relevant evidence.” Commonwealth v. Aviles, 461 Mass. 60, 73 (2011). The exercise of discretion as to whether evidence is admissible under the first complaint doctrine is fact specific and requires the trial judge to conduct a careful and thorough analysis based on the principles set forth in this Note. “Once a judge has carefully and thoroughly analyzed these considerations, and has decided that proposed first complaint evidence is admissible, an appellate court shall review that determination under an abuse of discretion standard.” Id.

Applicability of First Complaint Doctrine. The first complaint doctrine is not applicable to cases in which neither the fact of a sexual assault nor the consent of the complainant is at issue. Commonwealth v. King, 445 Mass. 217, 247 (2005).

“First complaint testimony, including the details and circumstances of the complaint, will be considered presumptively relevant to a complainant’s credibility in most sexual assault cases where the fact of the assault or the issue of consent is contested. However, where neither the occurrence of a sexual assault nor the complainant’s consent is at issue [i.e., identity of the perpetrator], the evidence will serve no corroborative purpose and will not be admissible under the first complaint doctrine.”


Identifying the First Complaint. That the complainant’s first report of a sexual assault is abbreviated in nature does not change its status as the first complaint. See Commonwealth v. Stuckich, 450 Mass. 449, 455–456 (2008). A victim’s report of a sexual assault may qualify as a first complaint even if it does not include the identity of the perpetrator. Commonwealth v. Asenjo, 477 Mass. 599, 603 (2017). A first complaint witness is not disqualified from testifying where the alleged victim previously disclosed only physical abuse to that witness. Commonwealth v. Rivera, 83 Mass. App. Ct. 581, 584 (2013). While ordinarily there will be only one first complaint witness, two first complaint witnesses may testify in circumstances “where each witness testifies to disclosures years apart concerning different periods of time and escalating levels of abuse, which constitute different and more serious criminal acts committed over a lengthy period.” Commonwealth v. Kebreau, 454 Mass. 287, 288–289 (2009). See Commonwealth v. Aviles, 461 Mass. 60, 71 n.9 (2011) (distinguishing Kebreau and limiting first complaint to initial disclosure of “touching” where subsequent disclosure of rape could have been disclosed by complainant as part of her first complaint); Commonwealth v. Lewis, 91 Mass. App. Ct. 651, 659–661 (2017) (two first complaints admissible where each complaint concerned a separately charged rape, and each piece of evidence was carefully limited to the facts of one rape). The fact that the complainant tells someone of feeling upset, unhappy, or scared is not a first complaint. See Commonwealth v. Murungu, 450 Mass. 441, 446 (2008). “Law enforcement officials, as well as investigatory, medical, or social work professionals, may testify to the complaint only where they are in fact the first to have heard of the assault, and not where they have been told of the alleged crime after previous complaints or after an official report.”  King, 445 Mass. at 243. While only the very first complaint is admissible, and successive complaints to the same witness are not, communications that are part of a single, continuous dis-closure may be admitted. See Commonwealth v. Holguin, 101 Mass. App. Ct. 337, 339–341 (2022) (communication begun in text messages and continued in person one hour later admissible as single, continuous first complaint).

The first complaint evidence could be in the form of a recorded 911 emergency telephone call, a letter, or a G. L. c. 209A abuse prevention complaint affidavit; a live witness is not required. Stuckich, 450 Mass. at 455–456; Lewis, 91 Mass. App. Ct. at 661–662.

Limiting Instruction Required. Whenever first complaint evidence is admitted, whether through the complainant or the first complaint witness, the court must give the jury a limiting instruction. King, 445 Mass. at 219, 247–248. The instruction must be given contemporaneously with the first complaint testimony and again during the final instruction. Id. at 248.

Determination of Who Is the First Complaint Witness. The determination of who is the first complaint witness is a preliminary question of fact for the trial judge. Stuckich, 450 Mass. at 455–456. See Section 104(a), Preliminary Questions: In General.

Scope of the Doctrine. The first complaint doctrine applies only if the complainant is available for cross-examination about the first complaint. King, 445 Mass. at 247 n.27. “The timing by the complainant in making a complaint will not disqualify the evidence, but is a factor the jury may consider in deciding whether the first complaint testimony supports the complainant’s credibility or reliability.” Id. at 219. The first complaint doctrine applies even to cases in which there is a percipient witness (in addition to the victim) to the sexual assault. See Commonwealth v. Hartnett, 72 Mass. App. Ct. 467, 470 (2008). An alleged victim’s inability to recall the details of the first complaint goes to the weight and not the admissibility of the testimony by the first complaint witness. See Commonwealth v. Wallace, 76 Mass. App. Ct. 411, 415 (2010).

The first complaint witness may “testify to the details of the complaint itself. By details, we mean that the witness ‘may testify to the complainant’s statements of the facts of the assault.’” King, 445 Mass. at 244, quoting Commonwealth v. Quincy Q., 434 Mass. 859, 874 (2001). The witness

“may testify to the circumstances surrounding the initial complaint, [including] his or her observations of the complainant during the complaint; the events or conversations that culminated in the complaint; the timing of the complaint; and other relevant conditions that might help a jury assess the veracity of the complainant’s allegations or assess the specific defense theories as to why the complainant is making a false allegation” (citation omitted).

Id. at 246.

Complete congruence between the testimony of the complainant and the testimony of the first complaint witness is not required; the first complaint witness cannot fill in missing elements in the Commonwealth's case. Under Section 403, the trial judge has discretion to exclude details absent from the complainant’s testimony.  Commonwealth v. Rivera, 83 Mass. App. Ct. 581, 586 nn.5–6 (2013).

The alleged victim is permitted to the substance of the first complaint and why the complaint was made (1) when the first complaint witness or a court-approved substitute first complaint witness testifies at trial to those details, (2) when the first complaint witness is deceased, or (3) when the judge decides there is a compelling reason for the absence of the first complaint witness that is not the Commonwealth’s fault. King, 445 Mass. at 245 & n.24.

A statement that qualifies as a spontaneous utterance by the victim reporting the assault also constitutes first complaint evidence such that an additional first complaint witness should not be permitted to testify, even if what that witness has to offer is more detailed or complete. Commonwealth v. McGee, 75 Mass. App. Ct. 499, 502–503 (2009); Commonwealth v. Davis, 54 Mass. App. Ct. 756, 765 (2002).

Substitution of a Witness. Where feasible, the first person told of the alleged sexual assault should be the initial or first complaint witness to testify. King, 445 Mass. at 243–244. In Commonwealth v. Murungu, 450 Mass. 441, 445–448 (2008), the Supreme Judicial Court identified two exceptions to the first complaint doctrine. A person other than the first recipient of information from the complainant is allowed to testify as the first complaint witness (1) if the victim’s disclosure to the “first person does not constitute a complaint,” or (2) if the victim complains first to an individual who “has an obvious bias or motive to . . . distort the victim’s remarks.” Id. at 446. The court explained that in Commonwealth v. King, it had not “set forth an exhaustive list of appropriate substitutions.” Id. at 445. “Other exceptions are permissible based on the purpose and limitations of the first complaint doctrine.” Id. See also Commonwealth v. Hanino, 82 Mass. App. Ct. 489, 491 (2012) (feigning).

Even when the complainant has disclosed information about the sexual assault to a person with no obvious bias against the complainant, the trial judge has discretion to allow the Commonwealth to substitute another witness as the first complaint witness in circumstances “where [that person] is unavailable, incompetent, or too young to testify meaningfully . . . .” King, 445 Mass. at 243–244. See, e.g., Commonwealth v. Roby, 462 Mass. 398, 407–408 (2012) (where two child victims initially first told each other about defendant’s inappropriate touching, it was proper to allow first adult [and first noncomplainant] told about the sexual assaults to testify as first complaint witness); Commonwealth v. Pena, 96 Mass. App. Ct. 655, 659 (2019) (within trial judge’s discretion to permit substitute first complaint witness where witness to whom first complaint was made was unavailable due to his incarceration out of state); Commonwealth v. Thibeault, 77 Mass. App. Ct. 419, 421–423 (2010) (child’s mother could be substituted as witness for child’s father where father was first person to whom child complained but he appeared to have fled the Commonwealth and could not be located at time of trial).

Impeachment of First Complaint Witness. The court has discretion to permit the Commonwealth to impeach the first complaint witness by means of prior inconsistent statements in circumstances in which the court determines that the witness is feigning a lack of memory as to significant details of the first complaint. See Commonwealth v. Hanino, 82 Mass. App. Ct. 489, 497–498 (2012) (testimony of two police officers regarding statements made to them by first complaint witness and inconsistent with witness’s in-court testimony was admissible for limited purpose of impeaching witness’s in-court testimony and thus was not impermissible, multiple complaint hearsay).

Subsection (b). This subsection is derived from Commonwealth v. Dargon, 457 Mass. 387, 399–400 (2010); Commonwealth v. Arana, 453 Mass. 214, 224–229 (2009); and  Commonwealth v. Stuckich, 450 Mass. 449, 457 (2008).

“Evidence of a subsequent complaint is not admissible simply because a separate evidentiary rule applies (e.g., the statement is not hearsay, or it falls within an exception to the hear­say rule). If independently admissible evidence . . . serves no purpose other than to repeat the fact of a complaint and therefore corroborate the complainant’s accusations, it is inadmissible. However, if that evidence does serve a purpose separate and apart from the first complaint doctrine, the judge may admit it after careful balancing of the testimony’s probative and prejudicial value.” (Quotations and citations omitted.)

Dargon, 457 Mass. at 399–400. See also Commonwealth v. Santos, 465 Mass. 689, 700–701 (2013) (mother’s description of son’s appearance and demeanor after alleged sexual assault admissible to show victim’s state of mind at the time); Commonwealth v. Parent, 465 Mass. 395, 403–404 (2013) (claim of fabrication alone is insufficient to open the door to the admission of multiple complaints); Commonwealth v. Aviles, 461 Mass. 60, 67 (2011) (testimony of both complainant and first complaint witness pertaining to subsequent disclosure, though not admissible under first complaint doctrine, was properly admitted to rebut the defendant’s suggestion that complainant’s accusations were fabricated); Commonwealth v. McCoy, 456 Mass. 838, 851 (2010) (admission of mother’s testimony that she and victim had conversation about assault, even without details of conversation, was error when testimony did not serve “any additional purpose”); Commonwealth v. Santana, 101 Mass. App. Ct. 690, 697 (2022) (testimony of sexual assault investigator detailing various steps of Commonwealth’s investigation, including district attorney’s arrangement of foren-sic interview with victim, interview of victim’s parents, and process of obtaining arrest warrant, not allowed under first complaint doctrine and irrelevant to issue of defendant’s guilt); Commonwealth v. Hoime, 100 Mass. App. Ct. 266, 274–277 (2021) (evidence of SANE [sexual abuse nurse examiner] medical examination, police sergeant’s interview of victim, and police sergeant’s interview of defendant was independently admissible to prove chain of custody, explain delay in testing, and rebut defense of fabrication; it was not considered first complaint evidence); Commonwealth v. Starkweather, 79 Mass. App. Ct. 791, 799–803 (2011) (applying Dargon and Arana analysis to several aspects of police involvement and investigation); Commonwealth v. Monteiro, 75 Mass. App. Ct. 489, 495 (2009) (admission of testimony indicating that complainant had made reports of sexual abuse to his mother, the Department of Social Services, and the district attorney’s office, without any more details, in circumstances where the father was the first complaint witness, was error). Contrast Santos, 465 Mass. at 701 (in a prosecution for rape, the judge did not abuse her discretion in allowing the Commonwealth to introduce testimony from the victim’s mother, a non–first complaint witness, about the victim’s appearance and demeanor to rebut the defense’s theory that the incident was fabricated where the “testimony did not repeat any details of the event, was relevant, and not merely cumulative of the [first complaint witness’s] testimony”); Commonwealth v. Lawton, 82 Mass. App. Ct. 528, 536–538 (2012) (victim’s statements to SAIN [Sexual Abuse Intervention Network] interviewer not offered as additional complaint testimony, but were independently relevant to contradict impeachment of victim and to rebut defendant’s theory of suggestibility).

The question whether testimony concerning multiple complaints is permissible “is fact-specific and requires, in the first analysis, a careful evaluation of the circumstances by the trial judge.” Commonwealth v. Kebreau, 454 Mass. 287, 296 (2009). In Commonwealth v. Ramsey, 76 Mass. App. Ct. 844, 849 (2010), the Appeals Court explained that medical records that included statements by the alleged victim pointing to the defendant as the perpetrator of the sexual assault and statements of hospital personnel repeating the allegations, conclusory statements of rape, and a diagnosis of incest, which the judge found admissible under the hospital records exception to the hearsay rule, should not have been admitted at trial because the judge had not determined that the evidence served a purpose other than to corroborate the victim and had not carefully balanced its probative value and prejudicial effect.

“In [Commonwealth v.] Arana, [453 Mass. 214, 227 (2009)], further evidence of complaint was admissible in order to rebut the defendant’s allegation that the complainant fabricated the accusations to provide a basis for a civil lawsuit. In  Commonwealth v. Kebreau, 454 Mass. 287, 299 (2009), such evidence was admissible because the defense exploited discrepancies in the testimony of one of the victims and had ‘opened the door on cross-examination’; thus ‘the Commonwealth was entitled to attempt to rehabilitate the witness.’”

Ramsey, 76 Mass. App. Ct. at 850 n.12. See also Commonwealth v. Saunders, 75 Mass. App. Ct. 505, 509 (2009) (defense counsel cross-‌examined victim about reports she allegedly made that someone other than defendant got her pregnant; this opened the door to permit the Commonwealth to offer evidence of statements made by the victim about the defendant’s conduct to persons other than the first complaint witness).

SAIN Evidence. A SANE (sexual abuse nurse examiner) is permitted to testify about the SAIN (Sexual Abuse Intervention Network) evidence kit used in the examination of a person alleged to be the victim of a sexual assault and the sexual assault examination process, provided it is either to provide background for the nurse’s testimony about the examination of the alleged victim or to lay a foundation for the admission of physical evidence. See Commonwealth v. Dargon, 457 Mass. 387, 398 n.13 (2010). On the other hand, in Commonwealth v. Monteiro, 75 Mass. App. Ct. 489, 493–494 (2009), the Appeals Court found that the inclusion of testimony from a police detective who watched a tape of the SAIN interview and who described the interview process and indicated that as a result he continued with his investigation was error because it suggested that the SAIN interviews take place when persons are thought to be victims of sexual assault and implied that the detective found the complainant credible. In addition, the printed forms that are filled out by the SAIN interviewer (Forms 2 and 3) based on questions put to the alleged victim are not admissible, because the printing suggests that a sexual assault took place. See Dargon, 457 Mass. at 398 n.13.

Section 414. Industry and safety standards

Safety rules, governmental regulations or ordinances, and industry standards may be offered by either party in civil cases as evidence of the appropriate care under the circumstances.


This section is derived from Torre v. Harris-Seybold Co., 9 Mass. App. Ct. 660, 671 (1980). Like the safety rules themselves, evidence of an employee’s violation of an employer’s safety rules is admissible as evidence of negligence. Lev v. Beverly Enters. Mass., Inc., 457 Mass. 234, 245 (2010). A company’s or industry’s “custom and practice,” even when not embodied in a written policy, is also admissible. Commonwealth v. Angelo Todesca Corp., 446 Mass. 128, 137–138 (2006). A violation of such rules or regulations, while some evidence of negligence, is not conclusive. St. Germaine v. Prendergast, 411 Mass. 615, 620 (1992). The rule or regulation cannot, however, create a duty where none exists and is admissible only if the harm is of the kind intended to be prevented. Lev, 457 Mass. at 246–247.

Cross-Reference: Section 803(17), Hearsay Exceptions; Availability of Declarant Immaterial: Statements of Facts of General InterestSection 803(18), Hearsay Exceptions; Availability of Declarant Immaterial: Learned Treatises.

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