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DOR Criminal Investigations Bureau (CIB)

The mission of DOR's Criminal Investigations Bureau (CIB) is to serve the Commonwealth by investigating potential criminal violations of the Massachusetts tax laws and related financial crimes in a manner that fosters confidence in the tax system and compliance with the law.

Updated: October 14, 2021

Table of Contents

Who We Are

The Criminal Investigations Bureau consists of a staff of experienced tax fraud investigators, an administrative assistant, seasonal interns as well as the Director and Deputy Director. On tobacco-related investigations, the Criminal Investigations Bureau works closely with the Illegal Tobacco Task Force and with civil tobacco inspectors from the Department of Revenue’s Miscellaneous Excise Unit.

What We Do

The Criminal Investigations Bureau investigates matters referred to it for potential violations of the Commonwealth’s tax laws and related financial crimes.  In addition to receiving referrals from the Department of Revenue’s Audit Division, the Criminal Investigations Bureau receives referrals from law enforcement and investigatory agencies, legislators, concerned citizens, state and federal agencies and other divisions within the Department of Revenue.  After completing its investigation, if the Criminal Investigations Bureau determines that a matter presents potential criminal violations or conduct, then it refers such matters to a prosecutorial agency for additional investigation and potential criminal prosecution.

Recent Cases


For law enforcement personnel seeking assistance with a state tax investigation, members of the general public with information about suspected Illegal Tobacco Trafficking, or members of the general public with information about the suspected sale or use of automated sales suppression devices (e.g. zappers, phantom-ware), contact the Department of Revenue’s Criminal Investigations Bureau at (617) 626-3210 or send correspondence to:

Massachusetts Department of Revenue
Criminal Investigations Bureau
100 Cambridge St.
Suite 700
Boston, MA 02114