Arizona has some of the strictest DUI laws in the country. A first-offense conviction carries mandatory jail. The right defense begins with the stop itself — not the breath result.
Arizona DUI law is among the most aggressive in the nation, and the consequences cascade across two parallel tracks — the criminal case in court and the administrative case at the Motor Vehicle Division — that have separate rules, separate deadlines, and separate decision-makers. The criminal track runs on the schedule the court sets after arraignment, often six to nine months from citation to disposition. The MVD track runs on a fifteen-day clock that starts the day the citation is issued. Failing to request the MVD hearing within that window results in automatic license suspension regardless of what happens later in court. We file the MVD request the day a client retains us, before any other strategic work begins, because the deadline does not move and the loss of driving privileges has cascading effects on employment, childcare, and the criminal case itself.
The substantive defense of a DUI case begins with the stop. An officer must articulate reasonable suspicion of a traffic violation or an equipment violation to justify the initial detention, and probable cause for the arrest itself. We obtain the body-camera and dash-camera footage, the dispatch audio, and the field-sobriety-test administration video in every case and review them against the National Highway Traffic Safety Administration standards. Officers routinely deviate from the standardized protocols for the walk-and-turn, one-leg-stand, and horizontal-gaze-nystagmus tests, and those deviations — properly documented — can support suppression of the test results entirely. The breath-testing instrument, almost always the Intoxilyzer 8000 in Arizona, requires quarterly calibration with traceable standards and documented operator certification. A gap in the maintenance log is grounds to challenge the result.
The penalty structure escalates sharply with the test result. A standard first-offense DUI under A.R.S. § 28-1381 carries a minimum ten days in jail, of which nine can be suspended upon completion of alcohol screening and treatment. An extreme DUI at a 0.15 BAC carries thirty days. A super-extreme at 0.20 carries forty-five. An aggravated DUI under § 28-1383 — typically charged when there is a child in the vehicle, a suspended license, or a third offense in seven years — is a class four felony with a mandatory four-month prison floor on first conviction. Interlock requirements, fines, surcharges, treatment costs, license restrictions, and insurance consequences accompany each level. The difference between a reduction to reckless driving and a conviction for extreme DUI can be measured in years of consequences, and that difference often turns on motion practice that must be completed before plea discussions begin.
At a glance
- MVD hearing request filed the day you hire us.
- Forensic review of breath/blood evidence by credentialed experts.
- Felony aggravated and extreme/super-extreme DUI experience.
- Plea negotiation aimed at reduction or dismissal where supported.
Issues we look for
Reasonable suspicion for the stop, probable cause for arrest, GERD and mouth-alcohol contamination of breath results, partition-ratio variation, Intoxilyzer maintenance logs, and the chain of custody for any blood draw.
License consequences
Your driver's license is on a separate track from your criminal case. The 15-day window to request an MVD hearing starts the day you're cited. We file the request the same day you hire us.
Penalty exposure
Standard DUI: 10 days jail (9 suspended with screening). Extreme DUI (.15+): 30 days. Super-extreme (.20+): 45 days. Aggravated DUI (felony): four months prison minimum. Interlock, fines, and surcharges apply to each.
Defense strategy
We obtain the calibration records, the officer's body-camera and dash-camera footage, and the dispatch audio; engage forensic toxicologists when warranted; and file targeted motions to suppress before plea discussions begin.
Underage and CDL drivers
Drivers under 21 face zero-tolerance consequences. CDL holders face permanent disqualification on a second offense. Both warrant specialized strategy.
Representative results
Past outcomes do not guarantee a future result. Details are generalized to preserve client confidentiality.
- Suppression of breath evidence after the Intoxilyzer's quarterly calibration log was found incomplete — case reduced to reckless driving.
- Dismissal of an aggravated (felony) DUI charge after the traffic stop was held unconstitutional.
- MVD hearing victory preserving driving privileges for an ASU graduate-student client through the criminal case.
Common mistakes to avoid
- Missing the 15-day MVD hearing window — driving privileges suspend automatically.
- Pleading at arraignment before discovery has been requested.
- Talking to the case agent 'just to clear things up.' You will not clear things up.
Fees
Flat-fee representation through arraignment and pretrial. Trial and motion practice are quoted separately if warranted by the discovery.
How a case moves through our office
- 01
Same-day MVD filing
We file the hearing request that preserves your license pending the criminal case.
- 02
Discovery
Police reports, body-cam, dispatch audio, breath/blood records, and maintenance logs.
- 03
Motions
Suppression based on stop, arrest, or test deficiencies.
- 04
Resolution
Negotiated plea, dismissal, or trial.
Governing law
- A.R.S. § 28-1381
- Standard DUI — impaired to the slightest degree / .08 or above.
- A.R.S. § 28-1382
- Extreme and super-extreme DUI.
- A.R.S. § 28-1383
- Aggravated DUI — felony enhancements.
Citations are general references, not legal advice. Statutes are amended; consult counsel for the current text as it applies to your matter.
DUI Defense by city
Each page below covers the local court, ZIP codes, neighborhoods, and the issues that come up most in that city.
Common questions
- Can a DUI be reduced?
- Sometimes — to reckless driving or a non-alcohol moving violation — when the facts and the prosecutor support it. We will tell you candidly what is realistic.
- Will I lose my license?
- An implied-consent suspension is automatic after an over-limit test unless we file an MVD request within 15 days. We file the same day.
- Do I need an interlock?
- Yes, on any DUI conviction. The duration depends on the offense level and prior history.
- Will it stay on my record?
- Yes. Arizona DUI convictions cannot be sealed. They can sometimes be 'set aside' after completion of probation.
- What if I refused testing?
- Refusal triggers a one-year license suspension and a warrant for blood. We defend both tracks.