On this site, you will find the full text of the 40th 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 IT Department for access instructions.

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:

9/19/21:   Judge Stearns has revised the chapter on "Admissions and Confessions" to take note of a number of new cases from the Supreme Judicial Court, the Appeals Court, the U.S. Supreme Court, and the First Circuit Court of Appeals.

9/5/21:   "Identification Evidence" and "Assault Crimes" have been updated to include new cases on authentication of social media and surveillance videotapes, in-court identification, DNA access, and the overt act element of assault, among other topics.

8/30/21:   Judge Stearns has updated and revised the chapters on "Searches with Warrants", "Motor Vehicle Searches", "Larceny", "Malicious Mischief", "Battery", and "Public Order Offenses".

Please see What's New for further details.


Massachusetts Prosecutor's Guide Online
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