There are two types of jurors in the Massachusetts court system: Trial Jurors and Grand Jurors. 

Both play essential roles in the fair and impartial administration of justice.

Image of Title Page from the Bill of Rights

Trial Jurors are summoned to serve for one day or for the duration of one trial, if they are impaneled on a case.

  • They sit and hear evidence on a single case, evaluate that evidence during deliberations with their fellow jurors, and render a verdict (make a decision) on that one case.
  • After the jury is dismissed by the judge, the jurors are excused from further jury service for a period of three years.
  • Please click here for more information on Trial Jurors.

Grand Jurors serve for a longer period of time: generally three months, although they may not meet for the entire day or meet each day.

  • Grand jurors hear evidence presented by the District Attorney’s Office and decide whether criminal charges (an indictment) should be brought against a person or corporation.
  • Like trial jurors, grand jurors are excused from further jury service for a period of three years after the grand jury is dismissed.
  • Please click here for more information on Grand Jurors.

As a resident of Massachusetts, you may also be called for Federal jury service, in the United States District Court for the District of Massachusetts. 



Office of Jury Commissioner for the Commonwealth
560 Harrison Avenue - Suite 600, Boston, Massachusetts 02118-2447
1-800-THE-JURY (1-800-843-5879)