A uniformed officer with reasonable and articulable suspicion that a violation of law has taken place, or is taking place, may stop a motor vehicle to arrest the operator for a crime, to issue a summons or ticket, or to question the operator or the people riding along.
- An officer who has made the stop may demand and inspect the driver's license, the certificate of registration, permits and the vehicle's identification numbers.
- When the operator cannot produce the registration, or is not the registered owner and cannot show reasonable evidence of authority to drive the vehicle, the officer may impound it until the owner claims it or confirms the operator's authority. The owner is told at once.
A name, an address and a date of birth. When an officer has probable cause to believe a person violated the motor vehicle title, intentionally failing or refusing on request to give that person's correct name, address or date of birth is a Class E crime.
An officer who stops a driver for a moving violation asks for evidence of liability insurance. It may be shown on a phone, and showing it that way is not consent for the officer to look at anything else on the device.
The Fourth Amendment sets limits on every stop, and the Supreme Court of the United States has drawn several of them. It has held that a stop is reasonable where the officer has probable cause to believe a traffic violation occurred, whatever the officer's actual motive; that an officer making a lawful stop may order the driver, and the passengers, out of the vehicle; that a passenger is seized by the stop and may challenge it; and that a stop may last no longer than its purpose requires, so it may not be extended for a dog sniff without separate reasonable suspicion. It has also held that consent to a search has to be voluntary, judged on all the circumstances, and that the prosecution does not have to prove the person knew they could refuse. Those holdings are a floor: a state's own constitution and statutes can give more protection than they do, never less.
Sources for this section (8)
- 29-A M.R.S. § 105 — Enforcement
- 29-A M.R.S. § 1601 — Required maintenance of financial responsibility
- Whren v. United States, 517 U.S. 806 (1996) — A traffic stop is reasonable when there is probable cause of a traffic violation
- Pennsylvania v. Mimms, 434 U.S. 106 (1977) — An officer may order the driver out of a lawfully stopped car
- Maryland v. Wilson, 519 U.S. 408 (1997) — An officer may order passengers out of a lawfully stopped car
- Brendlin v. California, 551 U.S. 249 (2007) — A passenger is seized by a traffic stop and may challenge it
- Rodriguez v. United States, 575 U.S. 348 (2015) — A stop may not be extended beyond its purpose to run a dog sniff
- Schneckloth v. Bustamonte, 412 U.S. 218 (1973) — Consent to a search must be voluntary
Legal information, not legal advice. Verified as of October 2026. Applying it to a particular situation is the work of a licensed Maine attorney.