Montana Stop and Identify (§ 46-5-401): You Request the Name, You Demand the License

Montana’s stop statute uses two different verbs, and they matter. You may request a person’s name. From a driver, you may demand the license, registration and insurance. Turn the request into a demand without particularized suspicion and you’ve made a seizure.

Montana Stop and Identify (§ 46-5-401)

Yes, but it’s a request, not a duty. Mont. Code Ann. § 46-5-401(2)(a) lets an officer who has lawfully stopped a person request a name, present address and an explanation, and demand a driver’s license, registration and proof of insurance from a driver. No statute makes refusing a name a crime. A demand for ID is itself a seizure that needs particularized suspicion (State v. Strom, 2014). A false statement made to mislead is § 45-7-203.

What § 46-5-401 says

On a stop based on “particularized suspicion,” (2)(a) says you may “request the person’s name and present address and an explanation of the person’s actions and, if the person is the driver of a vehicle, demand the person’s driver’s license and the vehicle’s registration and proof of insurance.”
The name language hasn’t changed since 1991 (a 2025 amendment added only an immigration-status subsection). The Court calls the statute “no more than a codification of the Terry investigative stop exception” (State v. Stanley, 2024 MT 271).

Demanding ID is a seizure — Strom and Ballinger

State v. Strom, 2014 MT 234 (unanimous): an officer’s first contact with two women in a lawfully parked van was “a demand of them to produce identification.” Taking the IDs to the patrol car and telling them to wait was a seizure without particularized suspicion. Reversed.
State v. Ballinger, 2016 MT 30: asking where a pair was going was not a seizure; demanding ID was — upheld there because particularized suspicion already existed.

Refusal doesn't expand the stop — Driscoll and Zeimer

State v. Driscoll, 2013 MT 63 (unanimous): a young-looking man with a beer said he was 22 and declined to show ID. “Without additional articulable facts that led the officers to believe that Driscoll was underage, the officers should not have taken Driscoll outside.” They “exceeded the scope of § 46-5-401,” and his statements — including the false name he gave outside — were suppressed.
State v. Zeimer, 2022 MT 96 (5–0), reaffirmed Driscoll: “nervous or defensive behavior” alone is insufficient. ID requests and warrant checks are fine if they don’t “substantially prolong” the stop.

With suspicion, you can press — Stanley

State v. Stanley, 2024 MT 271 (5–0): with particularized suspicion tying a pedestrian to a wanted man, officers kept asking for his name for about six minutes after he said “James Biden.” That was reasonable: “routine requests for identity or proof of identity are generally reasonably related to the purpose of an otherwise lawful investigative stop.”
A false name doesn’t make a lawful stop unlawful. A footnote mentions an “implied threat of arrest for obstructing” but decides nothing about it.

Passengers — O'Howell and Fish

State v. O’Howell, 2024 MT 209 (5–0): the driver’s license was revoked, so asking the passengers for licenses, then names and dates of birth, to find a valid driver did not extend the stop. “O’Howell could have responded … that he did not wish to answer the question, but Cordova did not exceed the scope of the stop by asking.”
State v. Fish, 2026 MT 12 — decided 4–3: on a casino-requested welfare check, the casino’s wish to have a parked couple removed gave particularized suspicion of trespass, so asking the passenger’s name was justified. “Unlike in Strom, the officers did not immediately demand identification.” The dissent saw no suspicion of trespass. A narrow majority read the bar generously.

Silence, obstruction and false statements

§ 45-7-302 obstruction: “knowingly obstructs, impairs, or hinders the enforcement of the criminal law.” No force element. Up to $500 and/or 6 months. No Montana Supreme Court decision we found holds that a silent refusal is, or is not, obstruction. It’s open — don’t build a refusal arrest on it.
§ 45-7-203(1)(a), unsworn falsification: “with the purpose to mislead a public servant in performing an official function,” making “any written or verbal false statement that the person does not believe to be true.” Up to $500 and/or 6 months.

Drivers — § 61-5-116

Carry the license while driving and display it on demand; since September 1, 2025, a department-issued digital copy counts. Producing a license valid at the time of arrest in court or at the officer’s office defeats the charge. Misdemeanor (§ 61-5-307). No statute requires a passenger to identify.

The federal floor underneath it

Brown v. Texas, 443 U.S. 47 (1979) — with no reasonable suspicion for the stop, a person cannot be punished for refusing to identify. If the stop fails, the identification charge fails with it.
Hiibel v. Sixth Judicial District Court, 542 U.S. 177 (2004) — a state may require a name during a lawful Terry stop, but the duty has to come from state law, not the Fourth Amendment. Stating the name satisfies it — Hiibel does not reach documents — and the request must be reasonably related to the reason for the stop.

How it plays out on the street

A bar’s parking lot. A young-looking person holding a beer says they’re 22 and won’t show ID. That alone is Driscoll — the refusal doesn’t buy you a longer stop. Find articulable facts or let it go. If the person also matches a fresh description from a fight inside, you have particularized suspicion, and under Stanley you can keep asking. On a traffic stop with a revoked driver, ask the passengers who’s licensed (O’Howell); one who declines hasn’t committed a crime.

Frequently asked questions

Does Montana have a stop and identify law?

Yes, but it is a request, not a duty. Mont. Code Ann. § 46-5-401(2)(a) lets an officer who has lawfully stopped a person on particularized suspicion request a name, present address and an explanation, and demand a license, registration and proof of insurance from a driver. No Montana statute makes refusing to give a name a crime.

Is refusing to give your name obstruction in Montana?

No Montana Supreme Court decision we found has decided whether a silent refusal is obstruction under § 45-7-302, so it is an open question. Declining to show ID does not, without more, justify expanding a stop (State v. Driscoll, 2013).

Do passengers have to give their name in Montana?

No statute requires it. In State v. O’Howell (2024) the Montana Supreme Court allowed officers to ask passengers for names to find a licensed driver and noted the passenger could decline. Demanding a passenger’s ID without particularized suspicion is an unlawful seizure (State v. Strom, 2014).

Carry the rule, not the guesswork. StreetSense breaks down Montana law like this — the statute, the limit, and the charge that actually sticks — verified against the code and available fully offline on shift. Start the free trial.

StreetSense is an educational reference for law enforcement, not legal advice. State law changes, and your department policy may be stricter than the statute. Always follow your state’s current rule and your agency’s policy.

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