MAMASSACHUSETTS
FULL KIT · LIVE

Massachusetts law, in your pocket.

Massachusetts criminal and traffic statutes, the Massachusetts decisions that interpret them, and field guides that walk the call — built from published state sources, on your phone with no signal needed. Covers G.L. c. 265+ and G.L. c. 90.

START YOUR FREE TRIAL →GET IT ON ANDROID →See what’s inside

StreetSense statute detail screen showing charge grade, penalties, elements and the case law linked to the statute

STATUTE DETAIL IN THE APP
(NEW JERSEY SHOWN — STATE PACKS RENDER THE SAME)

611MA STATUTES
53CASE-LAW ENTRIES
81FIELD GUIDES
65QUICK CARDS
NO SIGNALNEEDED IN THE FIELD
MASSACHUSETTS ≠ THE FEDERAL FLOOR

The rules that are Massachusetts’s own.

Federal cases set the minimum. Massachusetts’s courts have their own answers — and those are the ones that control your stop, your search, your report.

MASSACHUSETTS SUPREME JUDICIAL COURT · 2005

Commonwealth v. Feyenord

To hold a car past the traffic purpose you need reasonable suspicion of further crime. A dog sniff of a lawfully stopped car is not a search under art. 14, and here a roughly 25-to-30-minute wait for a canine was upheld as reasonable and proportional — but the longer you hold the motorist, the stronger your articulable suspicion must be.

833 N.E.2d 590FULL BRIEF IN THE MA PACK →

MASSACHUSETTS SUPREME JUDICIAL COURT · 1982

Commonwealth v. Bradshaw

With probable cause for a serious crime, strong reason to believe the suspect is armed and at home, a real escape risk, and impracticability of getting a warrant, a warrantless arrest under exigent circumstances is lawful — and luring the suspect outside by ruse to arrest him there is permissible.

431 N.E.2d 880FULL BRIEF IN THE MA PACK →

MASSACHUSETTS SUPREME JUDICIAL COURT · 1984

Irwin v. Town of Ware

If you encounter an obviously intoxicated driver, take action — arrest, protective custody, or otherwise get them off the road. Massachusetts statutes create a special relationship to protect the public from that driver, and negligently letting them drive on can expose the town to liability.

467 N.E.2d 1292FULL BRIEF IN THE MA PACK →

Each brief cites the decision and the court that issued it. Read the controlling authority and follow your agency’s policy — this is reference guidance, not legal advice. Coverage is not guaranteed and changes with each content release.
StreetSense Field Guides screen listing step-by-step decision flowcharts by call type

FIELD GUIDES — STEP-BY-STEP FLOWCHARTS

FIELD GUIDES · 81 IN THE MA PACK

The call, one decision at a time.

DV, juveniles, hospital holds, use of force, traffic — each guide walks the fork in the road with the Massachusetts law and procedure built in, the way an FTO would talk you through it.

Reference guidance only — your department’s policy and training take priority.
TEMP TAGS · FREE FOR VERIFIED LE

Massachusetts paper plates, decoded.

FIELD CHECK

Run with ‘TP’ prefix

Include ‘TP’ when running the number.

FIELD CHECK

20 days

Valid 20 days, extendable via RMV website.

FIELD CHECK

No security features

Tags have NO physical security features. Rely on running the number.

The temp-tag scanner is free for verified law enforcement — with or without a subscription. SEE HOW THE SCANNER WORKS →

FROM THE FIELD LIBRARY

Federal cases that reach every Massachusetts stop.

TRAFFIC STOPS

Pennsylvania v. Mimms (1977)

Ordering the driver out on a lawful stop — what it covers, and what it doesn’t.

READ THE BREAKDOWN →

VEHICLE SEARCHES

Arizona v. Gant (2009)

Once the arrestee is secured, the automatic car search is gone. The two narrow windows that remain.

READ THE BREAKDOWN →

DIGITAL EVIDENCE

Riley v. California (2014)

Seizing the phone is one question. Searching its data is another.

READ THE BREAKDOWN →

BROWSE THE FULL CASE-LAW LIBRARY →

WORK NEARBY?

Cross the line, keep the reference.

Task force, bi-state agency, or a beat near the border — every state gets the same breakdown, and the FEDERAL KIT travels with you.

NEW HAMPSHIRE → VERMONT → NEW YORK → CONNECTICUT → RHODE ISLAND → ALL STATES →

The Massachusetts kit. Free trial available.

Full Patrol Kit $24.99/yr · Essentials $9.99/yr · Lifetime $69.99 once — SEE PRICING →

START FREE →GET IT ON ANDROID →

Counts reflect the current Massachusetts content pack, are not guaranteed, and change with each content release. DEPARTMENT LICENSING →

StreetSense is an educational reference for law enforcement — not legal advice. Reference guidance only; your department’s policy and training take priority. Content accuracy, feature availability, and access to any state’s data or records are not guaranteed and change with each release. App screens are illustrative and may differ from the current version.