Getting arrested for DUI in Arizona is frightening. You're facing criminal charges, possible jail time, thousands in fines, and a mark on your record that follows you for years. The stakes are too high to navigate alone. Here's what you need to know about Arizona's DUI laws and when (and why) you need a lawyer.
Arizona's DUI Laws: Why They're So Strict
Arizona is consistently ranked among the strictest states for DUI enforcement. Under A.R.S. § 28-1381, it is illegal to drive or be in actual physical control of a vehicle while impaired to the slightest degree by alcohol, drugs, or any intoxicating substance, or with a blood alcohol concentration (BAC) of 0.08% or higher (0.04% for commercial drivers).
The phrase "impaired to the slightest degree" is important. Unlike many states that only prosecute at 0.08% BAC, Arizona can charge you with DUI at any BAC if the officer determines your driving was impaired. You can be convicted of DUI in Arizona with a BAC of 0.05% if the prosecution shows impairment.
DUI Penalties in Arizona
| Offense | Jail Time | Fines & Fees | License Suspension | Other |
|---|---|---|---|---|
| Standard DUI (1st offense, BAC 0.08–0.149%) | 10 days minimum (9 may be suspended) | $1,500+ | 90 days | Alcohol screening; interlock device |
| Extreme DUI (BAC 0.15–0.199%) | 30 days minimum | $3,000+ | 90 days | Interlock device for 12 months |
| Super Extreme DUI (BAC 0.20%+) | 45 days minimum | $4,500+ | 90 days | Interlock device for 18 months |
| Aggravated DUI (felony) | 4 months–2.5 years prison | $4,000+ | Revoked for 1 year | Felony on record; prison (not jail) |
| 2nd offense (within 7 years) | 90 days minimum (Extreme) | $3,500+ | 1 year revocation | Community service; extended interlock |
Why You Need a DUI Lawyer
The penalties are severe — even for a first offense
Arizona is not a state where a first-offense DUI is a slap on the wrist. Mandatory jail time, mandatory fines, mandatory interlock devices, and a mandatory license suspension apply even if it's your first time. A lawyer may be able to negotiate alternatives or reduced charges.
There may be defenses you don't know about
DUI cases involve complex science and strict procedures. An experienced DUI attorney will examine whether the traffic stop was lawful (did the officer have reasonable suspicion?), whether field sobriety tests were administered correctly, whether the breathalyzer or blood test was properly calibrated and administered, whether your blood sample was stored and tested according to protocol, and whether your rights were properly explained. If any of these procedures were mishandled, evidence may be suppressed or the case dismissed entirely.
A conviction has long-term consequences
Beyond the immediate penalties, a DUI conviction can affect employment (background checks), professional licenses (healthcare, law, education, finance), insurance rates (expect a 50–100% increase for several years), immigration status (for non-citizens, a DUI can trigger deportation proceedings), and custody proceedings (if you're involved in family court). A lawyer who gets a DUI reduced to reckless driving or dismissed altogether can save you from years of consequences.
How Much Does a DUI Lawyer Cost in Arizona?
| Case Type | Typical Attorney Fee |
|---|---|
| Standard DUI (first offense, straightforward) | $2,500–$5,000 |
| Extreme DUI (BAC 0.15+) | $3,500–$7,500 |
| Aggravated DUI (felony) | $5,000–$25,000+ |
| DUI trial | $10,000–$25,000+ |
These fees may seem steep, but compare them to the total cost of a conviction: fines of $1,500–$4,500+, jail costs ($80+/day in some counties), interlock device ($70–100/month for 6–18 months), increased insurance premiums ($1,000–3,000/year for 3–5 years), lost wages from jail time and court appearances, and potential job loss. The total cost of a DUI conviction without a lawyer easily reaches $10,000–$20,000 over several years — often more than the attorney would have cost.
What to Do Right After a DUI Arrest in Arizona
If you've just been arrested, here are your immediate priorities. Do not discuss your case with anyone except your attorney — statements you make to friends, family, or on social media can be used against you. Request a hearing with the MVD within 15 days — when your license is suspended at the time of arrest, you have only 15 days to request an administrative hearing to challenge the suspension. If you miss this deadline, the suspension is automatic. Contact a DUI attorney as soon as possible — many offer free consultations and can advise you on the specific facts of your case. Write down everything you remember about the stop, the arrest, and the testing procedures while your memory is fresh.
How to Choose the Right DUI Attorney
Not all criminal defense attorneys handle DUI cases regularly. Look for an attorney who focuses on DUI defense (not just general criminal law), has experience in the specific court where your case will be heard, understands the science behind breath and blood testing, has a track record of getting charges reduced or dismissed, and is a member of organizations like the National College for DUI Defense or the Arizona chapter of NACDL.
Ask during your consultation how many DUI cases they've handled, what percentage resulted in reduced charges or dismissals, and whether they've handled cases with facts similar to yours.
Find a DUI Defense Attorney in Arizona
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Search Criminal Defense AttorneysFrequently Asked Questions
Can I refuse a breathalyzer in Arizona?
You can, but there are consequences. Arizona has an "implied consent" law — by driving on Arizona roads, you've already consented to chemical testing if an officer has reasonable grounds to believe you're impaired. Refusing a test results in an automatic 12-month license suspension (compared to 90 days for failing the test). The refusal can also be used as evidence against you at trial.
Will I definitely go to jail for a first DUI?
The mandatory minimum for a first-offense standard DUI is 10 days in jail, but 9 of those days can be suspended if you complete alcohol screening and education. So the practical minimum is 1 day (24 consecutive hours) in jail. For Extreme and Super Extreme DUI, the mandatory minimums are higher and harder to reduce.
Can a DUI be expunged in Arizona?
Arizona doesn't have traditional expungement. However, under the "set aside" statute (A.R.S. § 13-905), you can petition to have your conviction set aside after completing your sentence. This doesn't erase the conviction, but it adds a notation that the conviction has been set aside, which can help with employment and other background checks.
What about marijuana DUI?
Despite recreational marijuana being legal in Arizona, driving under the influence of marijuana remains illegal. You can be charged with DUI if marijuana impairs your ability to drive, even if you're a legal user. The challenge for law enforcement is proving impairment, since THC can remain in your system long after the effects wear off. This is an evolving area of law where having a knowledgeable attorney is especially valuable.