Greater Boston Criminal Law Alerts

Massachusetts Criminal Law: Statutes, Procedure, and Defense in the District Courts and Boston Municipal Court


Attorney Joe Serpa has defended criminal cases in the Massachusetts District Courts and Boston Municipal Court for thirty years. These posts cover Massachusetts criminal law as it is actually practiced. Mr. Serpa explains statutes, case law, court-by-court procedure, and how charges are defended and resolved. These pages are written for defendants, licensed professionals, students, tradespeople, and non-citizens who need to understand what a Massachusetts criminal charge means and what the defense options are.

Your Fifth Amendment Right to Refuse to Provide Your iPhone Passcode in Massachusetts: What the Law Actually Says
Serpa Law Office

By Attorney Joseph Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense June 2026 When Massachusetts law enforcement seizes a digital device and demands the passcode, many defendants comply — out of panic, a desire to appear cooperative, or a mistaken belief that refusing will make them appear guilty. Under both the…

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Digital Search Warrants in Massachusetts: What Police Must Prove to Search Your Phone or Computer
Serpa Law Office

By Attorney Joe Serpa | Georgetown University Law Center, J.D. | 30 Years Massachusetts Criminal Defense June 2026 A Massachusetts search warrant for a digital device — a smartphone, laptop, tablet, or cloud storage account — is not a general license to search a defendant’s entire digital life. Under the Fourth Amendment to the United…

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Defending M.G.L. c. 209A and c. 258E Restraining Order Violations in Massachusetts
Serpa Law Office

By Attorney Joseph Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense Under M.G.L. c. 209A, § 7 and M.G.L. c. 258E, § 9, a violation of a civil protective order becomes a criminal offense only if the Commonwealth proves four distinct elements beyond a reasonable doubt. Not all conduct that violates a provision of the order constitutes a…

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The Law of Clerk-Magistrate Hearings in Massachusetts: Your Rights, the Statutes, and Case Law
Serpa Law Office

By Attorney Joe Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense A clerk-magistrate hearing is a unique opportunity in Massachusetts criminal procedure. A person can defeat a charge before it ever becomes public. Under M.G.L. c. 218, § 35A, when the police accuse someone of a misdemeanor but do not arrest…

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Student Fake ID Charges: Boston Police Enforcement and the Clerk-Magistrate Hearing
Serpa Law Office

By Attorney Joe Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense Most student fake ID cases in Boston do not begin with an arrest. They begin when a bouncer slides the card into a drawer, the student walks home annoyed about losing forty dollars, and a summons arrives at the student’s…

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Why a Massachusetts Breathalyzer Result Does Not Establish Guilt Beyond a Reasonable Doubt
Serpa Law Office

By Attorney Joe Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense A breathalyzer result at or above .08 establishes a per se violation of M.G.L. c. 90, § 24. It does not establish guilt beyond a reasonable doubt. Massachusetts courts treat breath test evidence as scientific testimony subject to foundational challenge,…

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A Practitioner’s Guide to Massachusetts Clerk-Magistrate Hearings
Serpa Law Office

By Attorney Joseph Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense A “Notice to Appear for Clerk-Magistrate’s Hearing” arrives in the mail without warning. There has been no arrest, no booking, no public record — but the police are formally attempting to charge you with a crime. Understanding what this notice…

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Criminal Charges at Cambridge District Court: The Dual-Track Problem for Students and Professionals
Serpa Law Office

By Attorney Joseph Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense Cambridge District Court exercises jurisdiction over Cambridge, Arlington, and Belmont — a compact geographic footprint that encompasses Harvard University, MIT, Lesley University, the Kendall Square biotech and technology corridor, and some of the most active late-night enforcement zones in Middlesex…

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AI Evidence and Deepfakes in Massachusetts Criminal Cases: Authentication, Daubert-Lanigan, and the Defense Playbook
Serpa Law Office

By Attorney Joe Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense Artificial intelligence has entered Massachusetts criminal courtrooms from two directions at once. Digital evidence offered against a defendant, a screenshot, a voice recording, a video, can now be fabricated with consumer software, which puts authenticity in play in cases where…

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Greater Boston Criminal Law Alerts

Pleading the Fifth Outside the Criminal Courtroom: Where Silence Protects You and Where It Costs You

By Attorney Joe Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense You’re arrested on a Saturday night after an argument at home. Your are then arraigned Monday morning, and your lawyer gives you the advice every defense lawyer gives. Do not talk about the case. Not to police, not to the…

The Modern Massachusetts Traffic Stop: Phones, GPS, License Plate Readers, and the Fruit of the Poisonous Tree

By Attorney Joe Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense A Massachusetts traffic stop used to be a roadside event. An officer saw a violation, pulled the car over, and whatever happened next happened in person, on the shoulder, in a few minutes. That stop no longer exists. The modern…

Domestic Violence Allegations in Massachusetts Divorce and Custody Disputes: Motive to Fabricate as a Defense

By Attorney Joe Serpa | Georgetown University Law Center | 30 Years Massachusetts Criminal Defense Most Massachusetts domestic violence complaints are made in good faith by people who were genuinely frightened, and nothing here suggests otherwise. There can sometimes be a specific and recurring subset that arises inside contested divorce and custody litigation, where a…