If you only remember one point about refusing a breathalyzer in Arizona, remember this: Refusal generally triggers a 12-month administrative license suspension for a first refusal (longer with priors), with a right to an MVD hearing if timely requested. Refusal can support aggravated DUI theories in some histories and is treated as a serious enhancement pathway. Birchfield permits criminal penalties for breath refusal; warrantless blood draws for criminal punishment remain constrained. Procedure, examples, and the opinions below hang off Ariz. Rev. Stat. § 28-1321. Arizona's implied-consent statute provides that a person who drives in the state consents to tests of blood, breath, urine, or other bodily substances when arrested for DUI. Officers must read an implied-consent advisory before requesting the test.
Criminal consequences of refusal
Refusal can support aggravated DUI theories in some histories and is treated as a serious enhancement pathway. Birchfield permits criminal penalties for breath refusal; warrantless blood draws for criminal punishment remain constrained.
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. Arizona statutes and case law implement those federal baselines with local detail.
Walking through Arizona facts
Use this walkthrough to see which Arizona authority does the work at each step.
A driver is arrested for DUI in Arizona and refuses the evidentiary chemical test after the implied-consent advisory.
- Identify the administrative consequence under Ariz. Rev. Stat. § 28-1321: Refusal generally triggers a 12-month administrative license suspension for a first refusal (longer with priors), with a right to an MVD hearing if timely requested.
- Separate that track from the criminal case: Refusal can support aggravated DUI theories in some histories and is treated as a serious enhancement pathway. Birchfield permits criminal penalties for breath refusal; warrantless blood draws for criminal punishment remain constrained.
- Ask whether the refusal can be argued to the jury: Evidence of refusal is admissible in the criminal DUI case and is commonly argued as consciousness of guilt.
- If the request is for blood rather than breath, apply the warrant rule: Breath tests are the standard implied-consent request. Blood draws usually proceed with a warrant; Arizona officers routinely seek telephonic warrants when breath is refused or unavailable.
In Arizona the refusal question is answered first by Ariz. Rev. Stat. § 28-1321, then by the administrative deadline and the criminal case.
Can refusal be used as evidence?
Evidence of refusal is admissible in the criminal DUI case and is commonly argued as consciousness of guilt.
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 Arizona opinions for “refusal” and “implied consent.”
Breath tests versus blood tests
Breath tests are the standard implied-consent request. Blood draws usually proceed with a warrant; Arizona officers routinely seek telephonic warrants when breath is refused or unavailable.
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 Arizona opinions on implied consent, refusal, and license revocation in LawDiver before a contested DMV hearing.
Case law: implied consent and refusal in Arizona
David H. CAMPBELL, Superintendent, Motor Vehicle Division, Arizona Highway Department, Petitioner, v. the SUPERIOR
…owing issues for decision by this court: (1) does Arizona's Implied Consent Law violate the privilege against self-incrimination; (2) does an arrested person have a right to the assistance of counsel in deciding whether or not to submit to a chemical test under the Implied Consent Law; (3) are proceedings to suspend the driver's license of a person who has refused to submit to…
On implied consent / breathalyzer refusal, David H. CAMPBELL, Superintendent, Motor Vehicle Division, Arizona Highway Department, Petitioner, v. the SUPERIOR speaks to the Arizona dispute in this passage: "owing issues for decision by this court: (1) does Arizona's Implied Consent Law violate the privilege against self-incrimination; (2) does an arrested person have a right to the assistance of counsel in deciding whether or not to submit to a chemical test under the Implied Consen" The surrounding opinion shows how the court applied that language to the record.
Jose Roberto MONTANO, Petitioner, v. SUPERIOR COURT of the State of Arizona, in and for the COUNTY OF PIMA, and
…s determination of two issues: whether A.R.S. § 28-691 (the Implied Consent statute) requires all police departments to provide some form of alcohol testing to those arrested for Driving Under the Influence of Intoxicating Liquor (DWI); and whether, when no alcohol test is provided, police must inform those arrested for DWI of their right to an independent chemical test. We hav…
Jose Roberto MONTANO, Petitioner, v. SUPERIOR COURT of the State of Arizona, in and for the COUNTY OF PIMA, and is worth reading on Arizona implied consent / breathalyzer refusal because the court put the point in its own words: "Driving Under the Influence of Intoxicating Liquor (DWI); and whether, when no alcohol test is provided, police must inform those arrested for DWI of their right to an independent chemical test." Use that passage as the starting point, then read the facts that precede it.
STATE of Arizona, Ex Rel. Lowell D. HAMILTON, Mesa City Prosecutor, Plaintiff/Appellee, v. the CITY COURT of the
…the requirements for determining BAC stated in the Arizona implied consent law, which does not include implied consent to take a HGN test for BAC. A refusal to take one of the prescribed tests leads to automatic suspension of the license or permit for a period of twelve months, § 28-691, and can be brought out in any civil or criminal action arising from the incident, § 28-692…
STATE of Arizona, Ex Rel. Lowell D. HAMILTON, Mesa City Prosecutor, Plaintiff/Appellee, v. the CITY COURT of the is worth reading on Arizona implied consent / breathalyzer refusal because the court put the point in its own words: "BAC stated in the Arizona implied consent law, which does not include implied consent to take a HGN test for BAC." Use that passage as the starting point, then read the facts that precede it.
STATE of Arizona, Petitioner, v. SUPERIOR COURT OF the STATE OF ARIZONA, in and for the COUNTY OF PIMA; Honorable
…efusal to take a blood alcohol test pursuant to the Arizona implied consent statute be used as evidence against him in a subsequent criminal trial for driving while under the influence of intoxicating liquor? III. The facts necessary for determination of this matter are as follows. On 4 December 1985, the defendant was arrested for violation of A.R.S. § 28-692(A) and (B) (drivi…
Practitioners open STATE of Arizona, Petitioner, v. SUPERIOR COURT OF the STATE OF ARIZONA, in and for the COUNTY OF PIMA; Honorable when Arizona implied consent / breathalyzer refusal turns on the distinction in this sentence: "Arizona implied consent statute be used as evidence against him in a subsequent criminal trial for driving while under the influence of intoxicating liquor?" Do not lift it out of the facts the court was deciding.
STATE of Arizona, Appellant, v. Faustino v. RAMOS, Appellee
STATE of Arizona, Appellant, v. Faustino v. RAMOS, Appellee, 155 Ariz. 153 (1987)
…I). Ramos refused a breath test after the state invoked the implied consent law. The police did not tell him that he had a right to an independent chemical test for blood alcohol level, and at no time did he request an independent test. Ramos was jailed immediately following the booking process. On January 13, 1986, by information, Ramos was charged with driving when under the…
On implied consent / breathalyzer refusal, STATE of Arizona, Appellant, v. Faustino v. RAMOS, Appellee speaks to the Arizona dispute in this passage: "I). Ramos refused a breath test after the state invoked the implied consent law. The police did not tell him that he had a right to an independent chemical test for blood alcohol level, and at no time did he request an independent test." The surrounding opinion shows how the court applied that language to the record.
Betty K. KOLLER, Plaintiff-Appellee, v. ARIZONA DEPARTMENT OF TRANSPORTATION, MOTOR VEHICLE DIVISION, an
…license for refusing to take a breath test under Arizona’s implied consent statute, Arizona Revised Statutes Annotated (“A.R.S.”) section 28-691. 1 The trial court reversed the ALJ’s suspension order. The Motor Vehicle Division of the Arizona Department of Transportation (“MVD”) now seeks reversal of the trial court’s judgment. ¶ 2 The issues presented are (1) whether a trial…
Betty K. KOLLER, Plaintiff-Appellee, v. ARIZONA DEPARTMENT OF TRANSPORTATION, MOTOR VEHICLE DIVISION, an is worth reading on Arizona implied consent / breathalyzer refusal because the court put the point in its own words: "Arizona’s implied consent statute, Arizona Revised Statutes Annotated (“A.R.S.”) section 28-691. 1 The trial court reversed the ALJ’s suspension order. The Motor Vehicle Division of the Arizona Department of Transportation (“MVD”) now seeks reversal of the trial court’s judgment." Use that passage as the starting point, then read the facts that precede it.
Key takeaways
- Primary authority: Ariz. Rev. Stat. § 28-1321.
- Administrative hit: Refusal generally triggers a 12-month administrative license suspension for a first refusal (longer with priors), with a right to an MVD hearing if timely requested.
- Criminal exposure: Refusal can support aggravated DUI theories in some histories and is treated as a serious enhancement pathway.
- Evidence: Evidence of refusal is admissible in the criminal DUI case and is commonly argued as consciousness of guilt.
- Blood vs. breath: federal Supreme Court doctrine in Birchfield and McNeely still frames warrant rules.
Implied consent in Arizona
Arizona's implied-consent statute provides that a person who drives in the state consents to tests of blood, breath, urine, or other bodily substances when arrested for DUI. Officers must read an implied-consent advisory before requesting the test.
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 Arizona appellate opinions.
License suspension and administrative hearings
Refusal generally triggers a 12-month administrative license suspension for a first refusal (longer with priors), with a right to an MVD hearing if timely requested.
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.
Frequently asked questions
What happens if I refuse a breathalyzer in Arizona?
Refusal generally triggers a 12-month administrative license suspension for a first refusal (longer with priors), with a right to an MVD hearing if timely requested. Refusal can support aggravated DUI theories in some histories and is treated as a serious enhancement pathway.
Is refusal a separate crime in Arizona?
Refusal can support aggravated DUI theories in some histories and is treated as a serious enhancement pathway. Birchfield permits criminal penalties for breath refusal; warrantless blood draws for criminal punishment remain constrained.
Will the prosecutor tell the jury I refused?
Evidence of refusal is admissible in the criminal DUI case and is commonly argued as consciousness of guilt.
Do I need a warrant for a blood draw?
Breath tests are the standard implied-consent request. Blood draws usually proceed with a warrant; Arizona officers routinely seek telephonic warrants when breath is refused or unavailable. See also Birchfield and McNeely linked above.