On this site, you will find the full text of the 43rd edition of the Prosecutor's Guide. The Guide presents a timely and comprehensive analysis of Massachusetts criminal law and its practice in the courts of the Commonwealth. It is fully updated each fall and during the year as new developments in the law warrant. Please consult our What's New page for the most recent changes. In addition, this online text is linked to a database of Massachusetts court decisions maintained by the Trial Court Law Libraries at masscases.com.

The text also cites and discusses significant criminal law cases decided by the Supreme Court, the federal Courts of Appeals, and state appellate courts from around the country. The principal focus, however, is on Massachusetts criminal law and its practice in the courts of the Commonwealth.

Access to the Guide is by annual subscription. If you are not yet a subscriber, please take the tour of a sample chapter from the Guide.

Please Note: If you are an employee of the Massachusetts Trial Court or an Assistant District Attorney, you have unlimited access to the Prosecutor's Guide web site thanks to licenses purchased on your behalf by the Massachusetts Trial Court Law Library and the Massachusetts District Attorneys Association, respectively. Please contact your office law library for access instructions. In the case of ADAs, access to the Guide is through your account on the New York Prosecutors Training Institute website.

Also law students at the following institutions have access through your school Law Library: Harvard, Suffolk, Boston College, Northeastern, Western New England School of Law, New England Law | Boston, Boston University, and the University of Massachusetts.

Please note:

11/14/23:   "District Court Procedure" has been revised to note among other significant developments the SJC's rescission of its final Covid-19 Emergency Order. "Procedure 2" has been revised to note new cases on attorney conflict of interest, other crimes evidence, accomplice liability, the Bruton rule, joint venture, and youthful offender sentencing, among other topics.

The 43rd edition of the Guide is now online

9/29/23:   "Search and Seizure" has been revised to expand on a number of topics including wiretapping, automatic standing, and the uncertain future of the third-party records doctrine. "Threshold Inquiries" has also been revised to reflect new case developments, particularly in the area of racial profiling.

Please see What's New for further details.


Massachusetts Prosecutor's Guide Online
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