Start with Mont. Code Ann. § 61-8-402. In Montana, A first refusal typically results in a six-month license suspension; subsequent refusals carry longer suspensions, with a right to an administrative hearing through Motor Vehicle Division processes. Refusal can enhance criminal DUI penalties. Birchfield permits criminal penalties for breath refusal; blood draws for criminal punishment generally require a warrant. That is the question this guide answers for refusing a breathalyzer. Montana drivers consent to breath, blood, or urine testing when arrested for driving under the influence. Officers must inform the person of the administrative consequences of refusal under § 61-8-402.
Implied consent in Montana
Montana drivers consent to breath, blood, or urine testing when arrested for driving under the influence. Officers must inform the person of the administrative consequences of refusal under § 61-8-402.
Implied consent is not the same as a Miranda warning. Officers typically must advise of the consequences of refusal before requesting a chemical test. Failure to give a required advisory can affect whether the administrative suspension sticks — a frequent issue in Montana appellate opinions.
License suspension and administrative hearings
A first refusal typically results in a six-month license suspension; subsequent refusals carry longer suspensions, with a right to an administrative hearing through Motor Vehicle Division processes.
The DMV / administrative track often runs separately from the criminal DUI case. Missing the short window to request an administrative hearing can lock in a suspension even if the criminal charge is later reduced or dismissed. Always calendar the administrative deadline the same day as the arrest.
How the Montana rule applies
Apply the Montana authorities in order. The facts are simplified so the statute and the standard are visible.
A driver is arrested for DUI in Montana and refuses the evidentiary chemical test after the implied-consent advisory.
- Identify the administrative consequence under Mont. Code Ann. § 61-8-402: A first refusal typically results in a six-month license suspension; subsequent refusals carry longer suspensions, with a right to an administrative hearing through Motor Vehicle Division processes.
- Separate that track from the criminal case: Refusal can enhance criminal DUI penalties. Birchfield permits criminal penalties for breath refusal; blood draws for criminal punishment generally require a warrant.
- Ask whether the refusal can be argued to the jury: Refusal is admissible in the DUI prosecution.
- If the request is for blood rather than breath, apply the warrant rule: Breath testing is standard; blood testing may be compelled with a warrant or under recognized exceptions in serious crash cases.
In Montana the refusal question is answered first by Mont. Code Ann. § 61-8-402, then by the administrative deadline and the criminal case.
Criminal consequences of refusal
Refusal can enhance criminal DUI penalties. Birchfield permits criminal penalties for breath refusal; blood draws for criminal punishment generally require a warrant.
Under Birchfield v. North Dakota, the Fourth Amendment allows criminal penalties for refusing a warrantless breath test incident to a lawful DUI arrest, but generally requires a warrant (or a recognized exception) before the State may impose criminal penalties for refusing a blood draw. Missouri v. McNeely rejected a per-se exigency based solely on natural dissipation of alcohol in the blood. Montana statutes and case law implement those federal baselines with local detail.
Can refusal be used as evidence?
Refusal is admissible in the DUI prosecution.
Prosecutors often argue consciousness of guilt; defense counsel emphasize confusion, inadequate advisories, or medical inability to provide a sample. The precise jury instruction language is state-specific — search Montana opinions for “refusal” and “implied consent.”
Breath tests versus blood tests
Breath testing is standard; blood testing may be compelled with a warrant or under recognized exceptions in serious crash cases.
Practical tip: a driver who refuses breath may still face a warrant-backed blood draw. Refusal does not create a permanent shield against chemical evidence; it mainly adds administrative (and sometimes criminal) consequences on top of the underlying DUI case.
Practical tips
- Ask whether the stop and arrest were lawful — implied consent usually requires a lawful DUI arrest first.
- Diary the administrative hearing deadline immediately.
- Do not confuse portable roadside breath screens with the evidentiary breathalyzer at the station; statutes often treat them differently.
- Research Montana opinions on implied consent, refusal, and license revocation in LawDiver before a contested DMV hearing.
Case law: implied consent and refusal in Montana
JAMES R. JOHNSON, Petitioner and Respondent, v. DIVISION OF MOTOR VEHICLES, MONTANA DEPARTMENT OF JUSTICE
…State to restore a driver’s license seized under Montana’s Implied Consent Law when the driver failed to submit to a breathalyzer test requested by a police officer. The issue on appeal is whether respondent James Johnson “cured” his failure to submit to the breathalyzer test by initiating a blood alcohol test a short time later. We hold that the later test did not cure respon…
JAMES R. JOHNSON, Petitioner and Respondent, v. DIVISION OF MOTOR VEHICLES, MONTANA DEPARTMENT OF JUSTICE is worth reading on Montana implied consent / breathalyzer refusal because the court put the point in its own words: "State to restore a driver’s license seized under Montana’s Implied Consent Law when the driver failed to submit to a breathalyzer test requested by a police officer." Use that passage as the starting point, then read the facts that precede it.
STATE OF MONTANA, Plaintiff and Respondent, v. BRIAN PAUL SIMMONS, Defendant and Appellant
…ld Hardesty, of Columbus, Montana, read Simmons the Montana Implied Consent Advisory concerning the administration of testing to determine the level of alcohol in the blood. Among other things, this form states: *62(2) If you refuse this testing, your driver’s license will be seized and suspended for six months. (3) If you have refused similar testing within the past five years…
On implied consent / breathalyzer refusal, STATE OF MONTANA, Plaintiff and Respondent, v. BRIAN PAUL SIMMONS, Defendant and Appellant speaks to the Montana dispute in this passage: "Hardesty, of Columbus, Montana, read Simmons the Montana Implied Consent Advisory concerning the administration of testing to determine the level of alcohol in the blood." The surrounding opinion shows how the court applied that language to the record.
JERRY GRINDE, Petitioner and Respondent, v. STATE OF MONTANA, Defendant and Appellant
…riff’s Department. He was informed of the provisions of the implied consent statute, § 61-8-402, MCA. He refused to take a breath test until he was allowed to speak with an attorney. Deputy DeCock informed him that he did not have a right to speak with an attorney before being required to take a breath test. Grinde continued in his refusal and the officer treated his response a…
On implied consent / breathalyzer refusal, JERRY GRINDE, Petitioner and Respondent, v. STATE OF MONTANA, Defendant and Appellant speaks to the Montana dispute in this passage: "Department. He was informed of the provisions of the implied consent statute, § 61-8-402, MCA. He refused to take a breath test until he was allowed to speak with an attorney." The surrounding opinion shows how the court applied that language to the record.
In the Matter of the Petition of PAUL J. BURNHAM, Petitioner
In the Matter of the Petition of PAUL J. BURNHAM, Petitioner, 217 Mont. 513 (1985)
…was suspended pursuant to section 61-8-402, MCA, Montana’s implied consent statute. The letter indicated that for a first refusal to submit to a breath test section 61-8-402(5)(a), MCA, mandates “a suspension of 90 days with no provision for a restricted probationary license.” Respondent’s license was suspended for the period November 6, 1984 to February 4, 1985. On November 1…
Practitioners open In the Matter of the Petition of PAUL J. BURNHAM, Petitioner when Montana implied consent / breathalyzer refusal turns on the distinction in this sentence: "MCA, Montana’s implied consent statute. The letter indicated that for a first refusal to submit to a breath test section 61-8-402(5)(a), MCA, mandates “a suspension of 90 days with no provision for a restricted probationary license." Do not lift it out of the facts the court was deciding.
PATRICK F. MANEY, Petitioner and Appellant, v. STATE OF MONTANA, Respondent and Respondent
…ody to another officer who has jurisdiction. 2. Whether the implied consent statutes apply when the arresting officer makes a lawful citizen’s arrest outside the officer’s territorial jurisdiction. On October 11, 1991, Chinook City Police Officer Tim Gomke saw an approaching vehicle make a sudden lateral movement and flash its lights. Officer Gomke clocked the vehicle at 31 mph…
Montana opinions such as PATRICK F. MANEY, Petitioner and Appellant, v. STATE OF MONTANA, Respondent and Respondent are cited where implied consent / breathalyzer refusal is disputed. The court stated: "Whether the implied consent statutes apply when the arresting officer makes a lawful citizen’s arrest outside the officer’s territorial jurisdiction." That is the language to brief; the rest of the decision supplies the procedural posture.
In the Matter of the SUSPENSION OF THE DRIVER’S LICENSE OF RONALD DWAIN TURNER, Petitioner and Respondent, v. STATE
…ical test of his breath as required by § 61-8-402, MCA, the implied consent law. We affirm. The sole issue raised on appeal is whether the arresting officer had reasonable grounds to believe that Turner was in actual physical control of a vehicle while under the influence of alcohol. On September 19,1989, at approximately 4:00 p.m., Ronald Dwain Turner drove his 1974 Suzuki mot…
Practitioners open In the Matter of the SUSPENSION OF THE DRIVER’S LICENSE OF RONALD DWAIN TURNER, Petitioner and Respondent, v. STATE when Montana implied consent / breathalyzer refusal turns on the distinction in this sentence: "MCA, the implied consent law. We affirm. The sole issue raised on appeal is whether the arresting officer had reasonable grounds to believe that Turner was in actual physical control of a vehicle while under the influence of alcohol. On September 19,1989, at approximately 4:00 p.m." Do not lift it out of the facts the court was deciding.
MICHAEL ADAIR ELLENBURG, Petitioner and Appellant, v. MONTANA DEPARTMENT OF JUSTICE, Respondent and Respondent
…ompleted the DUI processing. Officer Muir read Ellenburg an implied consent advisory form, informing him, in relevant part: You may go to the hospital or a laboratory and have a blood test taken whether or not you take the tests that I offer. That test would be at your own expense and you may use that test for any purpose you choose. The breath test that I am offering you requi…
On implied consent / breathalyzer refusal, MICHAEL ADAIR ELLENBURG, Petitioner and Appellant, v. MONTANA DEPARTMENT OF JUSTICE, Respondent and Respondent speaks to the Montana dispute in this passage: "DUI processing. Officer Muir read Ellenburg an implied consent advisory form, informing him, in relevant part: You may go to the hospital or a laboratory and have a blood test taken whether or not you take the tests that I offer." The surrounding opinion shows how the court applied that language to the record.
Key takeaways
- Primary authority: Mont. Code Ann. § 61-8-402.
- Administrative hit: A first refusal typically results in a six-month license suspension; subsequent refusals carry longer suspensions, with a right to an administrative hearing through Motor Vehicle Division processes.
- Criminal exposure: Refusal can enhance criminal DUI penalties.
- Evidence: Refusal is admissible in the DUI prosecution.
- Blood vs. breath: federal Supreme Court doctrine in Birchfield and McNeely still frames warrant rules.
Frequently asked questions
What happens if I refuse a breathalyzer in Montana?
A first refusal typically results in a six-month license suspension; subsequent refusals carry longer suspensions, with a right to an administrative hearing through Motor Vehicle Division processes. Refusal can enhance criminal DUI penalties.
Is refusal a separate crime in Montana?
Refusal can enhance criminal DUI penalties. Birchfield permits criminal penalties for breath refusal; blood draws for criminal punishment generally require a warrant.
Will the prosecutor tell the jury I refused?
Refusal is admissible in the DUI prosecution.
Do I need a warrant for a blood draw?
Breath testing is standard; blood testing may be compelled with a warrant or under recognized exceptions in serious crash cases. See also Birchfield and McNeely linked above.