Introduction: Two Different Charges, Two Different Problems
When most people hear the terms “Extreme DUI” and “Aggravated DUI,” they assume these are just two levels of the same thing — a more serious DUI and an even more serious one. That assumption is understandable but wrong, and the distinction matters enormously to your defense strategy and to the consequences you face.
Extreme DUI is defined entirely by your blood alcohol concentration at the time of the offense. It is a measure of how intoxicated you were. Aggravated DUI, by contrast, is defined by the circumstances of the offense or by your prior history. Your BAC is essentially irrelevant to whether a DUI becomes aggravated — you could have a BAC of exactly 0.08% and still face Aggravated DUI charges if the right aggravating factors are present.
The penalties for these two categories of offense are also fundamentally different in kind, not just degree. An Extreme DUI is a misdemeanor with mandatory jail time. An Aggravated DUI is a felony with mandatory state prison time — a distinction that affects every aspect of your life from employment to civil rights to where you are incarcerated.
This guide explains both charges in complete detail — what triggers each, what the penalties are, how the two differ from each other, what defenses apply, and what you need to do right now if you are facing either charge.
Arizona’s DUI Tier System: Understanding the Full Spectrum
Before diving into Extreme and Aggravated DUI specifically, it helps to understand where these charges sit within Arizona’s broader DUI framework. Arizona prosecutes DUI offenses on a spectrum defined by BAC level and aggravating circumstances.
Standard DUI — A.R.S. § 28-1381
BAC of 0.08% or higher, or impairment to the slightest degree at any BAC level. Class 1 misdemeanor. Minimum 10 days jail (up to 9 days may be suspended). Fines of approximately $1,500 to $2,500. 90-day license suspension. 12-month ignition interlock requirement.
Extreme DUI — A.R.S. § 28-1382
BAC of 0.15% or higher but below 0.20%. Class 1 misdemeanor with enhanced penalties. Minimum 30 days jail (up to 21 days may be suspended). Fines of approximately $2,500 to $3,500. 90-day license suspension. 12-month ignition interlock requirement.
Super Extreme DUI — A.R.S. § 28-1382
BAC of 0.20% or higher. Class 1 misdemeanor with the harshest misdemeanor penalties. Minimum 45 days jail (up to 31 days may be suspended). Fines of approximately $3,250 or more. 90-day license suspension. 18-month ignition interlock requirement.
Aggravated DUI — A.R.S. § 28-1383
Triggered by specific aggravating factors regardless of BAC level. Class 4 or Class 6 felony depending on the triggering factor. Mandatory state prison time. Three-year license revocation. Two-year ignition interlock requirement upon reinstatement. Permanent felony record.
Understanding where each charge fits in this framework clarifies the key point: Extreme and Super Extreme DUI are elevated misdemeanors defined by BAC. Aggravated DUI is an entirely different category — a felony defined by circumstances or history.
Extreme DUI in Arizona: Everything You Need to Know
What Is Extreme DUI?
Extreme DUI under A.R.S. § 28-1382 is charged when a driver’s blood alcohol concentration is 0.15% or higher at the time of driving or within two hours of driving. At 0.15%, a person is nearly twice the legal limit — a level of intoxication that Arizona law treats as categorically more dangerous than standard DUI and more deserving of enhanced punishment.
The 0.15% threshold is not arbitrary. Research on impairment at various BAC levels establishes that at 0.15%, most individuals experience significant loss of muscle control, substantially impaired judgment and decision-making, difficulty processing information, severely reduced reaction time, and obvious signs of intoxication. The risk of crash involvement at this BAC level is many times higher than at the legal limit.
Extreme DUI remains a Class 1 misdemeanor — the most serious level of misdemeanor in Arizona — but its mandatory minimums are significantly higher than for a standard DUI.
Super Extreme DUI: The Separate Category Most People Miss
Arizona actually creates a distinct subcategory within A.R.S. § 28-1382 for BAC of 0.20% or higher: Super Extreme DUI. At this level of intoxication, a person is typically exhibiting obvious severe impairment, and the risk of a serious or fatal crash is dramatically elevated.
Many sources conflate Extreme and Super Extreme DUI, or treat Super Extreme as simply a worse version of Extreme. It is important to understand that these carry distinct mandatory minimum penalties — particularly regarding jail time and ignition interlock duration — and should be analyzed separately.
First Offense Extreme DUI Penalties
Jail: Minimum 30 consecutive days. The court may suspend up to 21 of those days if the defendant completes alcohol screening and any required treatment, resulting in a mandatory minimum of 9 days actually served in custody.
Fines and fees: Approximately $2,500 to $3,500 when all mandatory surcharges, assessments, and fees are included. Arizona adds significant surcharges to base fines — the actual financial obligation routinely exceeds the base fine by a substantial margin.
License suspension: 90 days through the MVD. No driving is permitted for the first 30 days. A restricted license may be available for days 31 through 90.
Ignition Interlock Device: 12 months required following reinstatement of driving privileges, at the defendant’s expense.
Alcohol screening and treatment: Mandatory completion of an approved screening assessment and any treatment recommended as a result.
Probation: Up to five years of supervised probation may be imposed at the court’s discretion.
Second Offense Extreme DUI Penalties (Within 84 Months)
When a second Extreme DUI conviction occurs within 84 months of a prior DUI conviction of any type, the penalties escalate substantially.
Jail: Minimum 120 days. Up to 90 days may be suspended upon completion of treatment requirements, leaving a mandatory minimum of 30 days actually served.
Fines and fees: Approximately $4,000 or more including all surcharges and assessments.
License revocation: One year.
Ignition Interlock Device: 12 months following reinstatement.
Drug and alcohol treatment: Mandatory.
First Offense Super Extreme DUI Penalties
Jail: Minimum 45 consecutive days. Up to 31 days may be suspended upon completion of treatment requirements, leaving a mandatory minimum of 14 days actually served.
Fines and fees: Approximately $3,250 or more including all surcharges and assessments.
License suspension: 90 days.
Ignition Interlock Device: 18 months — six months longer than for Extreme DUI.
Alcohol screening and treatment: Mandatory.
Second Offense Super Extreme DUI Penalties (Within 84 Months)
Jail: Minimum 180 days. Up to 150 days may be suspended, leaving a mandatory minimum of 30 days actually served.
Fines and fees: Approximately $5,000 or more.
License revocation: One year.
Ignition Interlock Device: 24 months following reinstatement.
Aggravated DUI in Arizona: Everything You Need to Know
What Is Aggravated DUI?
Aggravated DUI under A.R.S. § 28-1383 is a felony DUI charge — categorically different from any misdemeanor DUI regardless of BAC level. The charge is not about how intoxicated you were. It is about specific circumstances that Arizona law has determined make the offense sufficiently serious to warrant felony prosecution.
A person can be charged with Aggravated DUI with a BAC of exactly 0.08% — or even lower if impairment to the slightest degree is proven — if any of the triggering aggravating factors are present. Conversely, a person with a BAC of 0.25% can be charged with Super Extreme DUI (a misdemeanor) rather than Aggravated DUI if none of the aggravating factors apply.
Understanding the specific triggers for Aggravated DUI is essential because the triggering factor also determines the felony class and the specific mandatory penalties.
The Five Triggers for Aggravated DUI in Arizona
Trigger 1: Third DUI Within 84 Months
A third DUI conviction within 84 months of two prior DUI convictions — regardless of the BAC involved in any of the three offenses — elevates the third DUI to Aggravated DUI. The 84-month lookback period means that DUI convictions from within the past seven years count toward this threshold. This is charged as a Class 4 felony.
The “conviction” requirement is significant. Prior DUI charges that were dismissed, reduced to non-DUI offenses, or for which the defendant was acquitted do not count. Prior DUI convictions from other states may count depending on the circumstances. Your attorney needs to carefully analyze the record of prior offenses to determine whether this trigger actually applies.
Trigger 2: Driving on a Suspended, Cancelled, or Revoked License
If you are driving under the influence while your license is suspended, cancelled, or revoked — and you knew or should have known about the suspension — the DUI is elevated to Aggravated DUI. This is one of the most commonly charged Aggravated DUI triggers and is charged as a Class 4 felony.
The “knew or should have known” standard is important. The prosecution does not necessarily need to prove you had actual knowledge of the suspension. If the MVD sent proper notice of suspension to your address of record, you may be deemed to have constructive knowledge even if you claim you never received it. However, this element — knowledge — is also one of the key points your defense attorney will attack.
Trigger 3: Child Passenger Under Age 15
If a passenger under the age of 15 is in the vehicle at the time of a DUI offense, the charge is elevated to Aggravated DUI. This trigger reflects Arizona’s particular concern for child safety and is charged as a Class 6 felony for a first or second offense and a Class 4 felony for a third or subsequent offense.
Note that this trigger can apply regardless of the driver’s BAC level. A driver impaired to the slightest degree — potentially below 0.08% — who has a child under 15 in the vehicle faces a felony charge.
Trigger 4: Wrong-Way Driving
Driving the wrong way on a highway while under the influence triggers an Aggravated DUI charge. Wrong-way driving is one of the most dangerous traffic scenarios, frequently resulting in high-speed head-on collisions. Arizona law treats it as an aggravating factor that elevates the DUI to a Class 4 felony.
Trigger 5: Driving Without Required Ignition Interlock
If a court has previously ordered you to have an ignition interlock device installed on your vehicle and you drive under the influence in a vehicle that does not have the required device — or in any vehicle if the order applies to all vehicles you operate — the DUI is elevated to Aggravated DUI. This is charged as a Class 4 felony.
This trigger is particularly significant because it can transform what would otherwise be a first or second offense misdemeanor DUI into a felony simply because the defendant was not in compliance with a prior court order.
Aggravated DUI Penalties: Class 4 Felony
The Class 4 felony Aggravated DUI — the most common category — carries the following mandatory penalties.
Prison: A mandatory minimum of 4 months in the Arizona Department of Corrections. This is not county jail — it is state prison. The presumptive sentence for a Class 4 felony in Arizona is 2.5 years. The mitigated sentence (available only with significant mitigating evidence) is 1.5 years. The aggravated sentence (applied when aggravating factors outweigh mitigating factors) is 3 years. Probation is not a substitute for the mandatory prison term in most circumstances.
Fines and fees: Substantially higher than misdemeanor DUI, often exceeding $4,000 before all surcharges and assessments are added.
License revocation: Three years — significantly longer than the 90-day suspension for misdemeanor DUI.
Ignition Interlock Device: Two years required following reinstatement of driving privileges.
Probation: Up to 10 years of supervised probation may be imposed following release from prison.
Alcohol screening and treatment: Mandatory.
Aggravated DUI Penalties: Class 6 Felony
The Class 6 felony Aggravated DUI typically applies to the child passenger trigger for first or second offenses. The Class 6 felony carries less severe mandatory minimums than the Class 4 version, with a presumptive sentence of one year and a mandatory minimum of prison time, though shorter than the Class 4 baseline.
Collateral Consequences of a Felony Aggravated DUI Conviction
The formal criminal penalties for Aggravated DUI are severe enough on their own. But the collateral consequences of a felony conviction extend the damage into every corner of a person’s life.
Loss of civil rights: A felony conviction in Arizona results in the temporary loss of the right to vote, serve on a jury, and hold public office. These rights are restored upon completion of sentence, including probation.
Loss of firearm rights: A felony conviction results in the permanent loss of the right to possess firearms under both Arizona and federal law, with limited exceptions. This is a permanent consequence that many defendants do not fully appreciate until after conviction.
Professional licensing consequences: Virtually every regulated profession in Arizona — healthcare, law, education, real estate, financial services, and many others — requires licensees to report felony convictions and gives the relevant licensing board authority to discipline, suspend, or revoke the license. The impact on professional licenses can be more life-altering than the criminal sentence itself.
Employment: A felony on your permanent record appears on background checks indefinitely. Many employers categorically disqualify applicants with felony convictions, particularly for positions involving driving, working with children, financial responsibilities, or security clearances.
Housing: Many landlords conduct background checks and decline to rent to individuals with felony convictions, particularly recent ones.
Immigration consequences: For non-citizens, a felony DUI conviction can be catastrophic. Aggravated DUI convictions may be classified as aggravated felonies or crimes of moral turpitude under federal immigration law, potentially triggering mandatory deportation and permanent bars to reentry.
International travel: Canada bars entry to individuals with DUI convictions, including misdemeanor DUI. A felony Aggravated DUI creates even more significant travel restrictions and complications.
Side-by-Side Comparison: Extreme DUI vs. Aggravated DUI
The following comparison covers the most important distinctions between these two charge categories.
What defines the charge:
Extreme DUI — BAC of 0.15% or higher.
Aggravated DUI — Specific aggravating circumstances or prior DUI history, regardless of BAC.
Criminal classification:
Extreme DUI — Class 1 misdemeanor.
Aggravated DUI — Class 4 or Class 6 felony.
Where sentence is served:
Extreme DUI — County jail.
Aggravated DUI — Arizona state prison.
Mandatory minimum incarceration (first offense):
Extreme DUI — 30 days jail (9 days minimum after suspension).
Aggravated DUI (Class 4) — 4 months state prison.
Fines (approximate, including surcharges):
Extreme DUI — $2,500 to $3,500.
Aggravated DUI — $4,000 or more.
License consequence:
Extreme DUI — 90-day suspension.
Aggravated DUI — 3-year revocation.
Ignition interlock:
Extreme DUI — 12 months.
Aggravated DUI — 24 months.
Probation:
Extreme DUI — Up to 5 years.
Aggravated DUI — Up to 10 years.
Permanent felony record:
Extreme DUI — No.
Aggravated DUI — Yes.
Loss of civil rights and firearms:
Extreme DUI — No.
Aggravated DUI — Yes.
Court that hears the case:
Extreme DUI — Municipal court or justice court.
Aggravated DUI — Maricopa County Superior Court.
Can You Be Charged with Both Extreme DUI and Aggravated DUI Simultaneously?
Yes — and this is an important point that many sources fail to address. The two charge categories are not mutually exclusive. A defendant can face both an Extreme DUI charge and an Aggravated DUI charge arising from the same driving incident if the facts support both.
For example: a driver with a BAC of 0.17% (Extreme DUI) who has a prior DUI conviction within 84 months and is driving on a suspended license faces both an Extreme DUI charge and an Aggravated DUI charge. In practice, the Aggravated DUI felony charge is the more serious matter that drives the prosecution and the defense strategy, but the Extreme DUI misdemeanor charge may be relevant to plea negotiations or sentencing.
Your attorney needs to analyze all charges filed against you — not just the most prominent one — to develop a comprehensive defense strategy.
Defense Strategies: What an Experienced Attorney Challenges
Both Extreme DUI and Aggravated DUI charges have genuine, viable defenses that an experienced attorney pursues aggressively. A DUI arrest is not a conviction, and the prosecution bears the burden of proving every element of every charge beyond a reasonable doubt.
Challenging the Initial Traffic Stop
The Fourth Amendment requires that police have reasonable articulable suspicion of a traffic violation or criminal activity before stopping a vehicle. If the stop was based on insufficient facts, fabricated, or constitutionally infirm for any reason, the entire case may be suppressible — including the chemical test results that form the foundation of the prosecution’s case.
Dash camera and body camera footage, dispatch records, and officer testimony are all subject to scrutiny. Officers sometimes claim observations of erratic driving that do not appear on dashcam footage. The discrepancy between what an officer reports and what the video actually shows is one of the most productive areas of defense investigation.
Questioning the Breath Test — The Intoxilyzer 9000
Arizona uses the Intoxilyzer 9000 for roadside and station breath testing. This device must be maintained according to strict protocols, calibrated at required intervals, operated by trained and certified personnel, and used in an environment free from interferents that can corrupt readings.
Defense attorneys request complete maintenance and calibration records for the specific device used, operator certification records, and any records of prior malfunctions or anomalous readings. A device with irregular maintenance history or an operator who deviated from required protocols provides significant grounds for challenging the reliability of the result.
Additionally, the Intoxilyzer 9000 measures alcohol in deep lung air and uses a conversion factor to estimate blood alcohol. Individual variation in lung physiology can cause the device to overestimate BAC for certain people. Body temperature at the time of the test also affects readings — fever elevates breath test results.
Challenging Blood Test Results
Blood tests are generally considered more accurate than breath tests, but they are not infallible and they are subject to a wider range of procedural requirements than breath tests.
The blood draw must be performed by a qualified person — a phlebotomist, nurse, physician, or emergency medical technician — using sterile equipment and an approved blood draw kit. The sample must be properly labeled and placed in a tube containing the correct preservatives and anticoagulants. It must then be stored under refrigeration, transported with proper documentation, and maintained with an unbroken chain of custody from the draw to the laboratory.
The laboratory itself must be certified and must follow approved testing protocols. Gas chromatography is the standard method for blood alcohol analysis in Arizona. The instrument must be properly maintained and calibrated, and the testing must follow established protocols.
Any break in this chain — improper draw technique, inadequate preservatives, improper storage temperature, break in chain of custody documentation, laboratory error, or instrument malfunction — creates grounds for challenging the reliability of the result.
Fermentation is a particularly important issue in blood cases. If blood is not properly preserved with sodium fluoride and potassium oxalate, or if it is stored at temperatures that allow microbial activity, the alcohol concentration in the sample can increase after collection — meaning the measured BAC is higher than what was actually in the defendant’s blood at the time of driving.
The Rising BAC Defense
Blood alcohol continues to rise after drinking stops as alcohol already consumed continues to be absorbed from the stomach and small intestine into the bloodstream. Peak BAC typically occurs 30 to 90 minutes after the last drink. This means that a person’s BAC at the time of testing — which occurs after the traffic stop, field sobriety tests, transport, processing, and either a breath test or blood draw — may be meaningfully higher than their BAC was at the actual time of driving.
In Extreme DUI cases where the BAC is close to the 0.15% threshold, the rising BAC defense can be significant. A skilled attorney uses expert testimony to establish that the defendant’s BAC at the time of driving may have been below the Extreme DUI threshold even if the test result exceeded it.
Challenging Field Sobriety Tests
The three Standardized Field Sobriety Tests — Horizontal Gaze Nystagmus, Walk-and-Turn, and One-Leg Stand — are validated by the National Highway Traffic Safety Administration only when administered in a specific standardized manner under specific conditions. Deviation from the standardized protocol affects the scientific validity of the tests.
Officers must be trained and certified in SFST administration. Their training records are discoverable and subject to scrutiny. Environmental factors — uneven pavement, inadequate lighting, incline, the presence of passing traffic — all affect performance on the Walk-and-Turn and One-Leg Stand tests. Physical conditions including inner ear disorders, leg injuries, neurological conditions, and advanced age all affect performance independently of intoxication.
The Horizontal Gaze Nystagmus test requires the officer to hold the stimulus at the correct distance and move it at the correct speed. Deviations from these parameters produce invalid results. Body camera footage of the HGN administration often reveals technique errors that are invisible in the officer’s written report.
Knowledge of License Suspension in Aggravated DUI Cases
For Aggravated DUI charges based on driving on a suspended license, the prosecution must prove that the defendant knew or should have known about the suspension. This element is often contested.
Defense attorneys examine the MVD notification record — what notices were sent, when, and to what address. If the notice was sent to an outdated address, the defendant’s actual knowledge of the suspension may be genuinely in question. If the suspension resulted from a court order in a case the defendant was not notified of, or from an administrative action the defendant had no reason to anticipate, these circumstances may support a defense to the knowledge element.
Challenging the Validity of Prior DUI Convictions
For Aggravated DUI based on a third DUI within 84 months, the prosecution must prove that the prior convictions are valid, occurred within the 84-month window, and count as DUI convictions under Arizona law. Prior convictions that were obtained without the defendant being represented by counsel, convictions from cases where the defendant’s rights were violated, or charges that were reduced to non-DUI offenses may not properly count as priors.
A careful review of prior conviction records is essential in third-offense Aggravated DUI cases.
Actual Physical Control
Arizona’s DUI law prohibits not just driving under the influence but being in “actual physical control” of a vehicle while impaired. Courts apply a totality of the circumstances test that considers whether the engine was running, where the ignition keys were located, where the driver was sitting, whether the car was capable of movement, and whether the driver posed an imminent risk of driving.
In cases where the defendant was found asleep or stationary in a vehicle, the actual physical control issue may be a viable defense. Arizona courts have found that sleeping in a car with the engine off and keys out of the ignition does not necessarily constitute actual physical control — though the analysis is highly fact-specific.
Constitutional Violations
Every stage of a DUI encounter is governed by constitutional requirements. Miranda rights must be given before custodial interrogation. Searches of the vehicle must be based on consent, probable cause, or an applicable exception to the warrant requirement. Coercive interrogation tactics can affect the admissibility of statements. A thorough review of the entire encounter for constitutional compliance is a standard component of competent DUI defense.
The MVD Administrative Process: A Separate Battle
When a person is arrested for DUI in Arizona, two separate proceedings are triggered simultaneously: the criminal case in court and an administrative license suspension proceeding through the Arizona Motor Vehicle Division.
The administrative proceeding operates independently of the criminal case. The standard of proof is lower than the criminal standard, and the MVD can suspend your license based on the arrest alone — even if you are never convicted.
When you are arrested, you typically receive a Notice of Suspension that serves as a 15-day temporary driving permit. You have exactly 15 days from the date of that notice to request an administrative hearing to contest the suspension. If you do not request the hearing within 15 days, the suspension becomes automatic and you permanently waive your right to contest it.
This deadline is one of the most critical in your entire case. Contact an attorney the same day as your arrest if at all possible. An experienced DUI attorney will request the MVD hearing immediately and use the hearing as an additional opportunity to challenge the basis for the stop and the testing — generating a record that may benefit the criminal case as well.
What to Do Immediately After an Arizona DUI Arrest
The decisions you make in the hours and days immediately following a DUI arrest have significant consequences for your case. Here is what actually matters.
Exercise your right to remain silent. You are required to provide your identification. You are not required to answer questions about where you were, what you drank, or where you were going. Politely but firmly decline to answer substantive questions and state that you want an attorney.
Understand the chemical testing situation. Arizona’s implied consent law means that refusing a chemical test after arrest triggers automatic license suspension consequences separate from and in addition to the DUI charge itself. The decision to refuse or submit is one that ideally you would discuss with an attorney first — though that is rarely possible at the time of arrest. Understand that refusal does not prevent prosecution and that officers can obtain a search warrant for a blood draw when you refuse.
Contact an attorney immediately. Not the next day. Not after you have slept and thought about it. Immediately. The 15-day MVD hearing deadline begins running from the date of arrest, and evidence — including dashcam footage that may be recorded over, witness memories, and physical evidence from the scene — begins degrading immediately. Your attorney cannot act until you call.
Document everything you remember. Write down a complete, detailed account of the entire encounter as soon as possible while your memory is fresh. The officer’s name and badge number, the reason given for the stop, what tests were administered and how, what you were asked and what you said, the timeline of events, and the names of any witnesses. This contemporaneous record is invaluable to your defense attorney.
Do not discuss the case on social media or with anyone other than your attorney. Statements made to anyone other than your attorney — including family members — are potentially discoverable and usable against you.
Frequently Asked Questions
What is the most important difference between Extreme DUI and Aggravated DUI in Arizona?
The most fundamental difference is the criminal classification — one is a misdemeanor and the other is a felony. Extreme DUI is a Class 1 misdemeanor defined by a BAC of 0.15% or higher. Aggravated DUI is a Class 4 or Class 6 felony defined by specific aggravating circumstances or prior DUI history, regardless of BAC. This distinction determines where your case is heard (municipal or justice court versus Superior Court), where you serve any sentence (county jail versus state prison), and whether you carry a permanent felony record that affects your civil rights, firearms rights, professional licenses, and long-term employment prospects.
Can an Aggravated DUI charge be reduced to a misdemeanor DUI in Arizona?
In some circumstances, yes — though it is not easy and is highly dependent on the specific facts of the case. Plea negotiations in Aggravated DUI cases can sometimes result in reduction to a misdemeanor DUI charge, particularly when there are evidentiary weaknesses in the prosecution’s case, genuine mitigating circumstances, or when the aggravating factor is contestable (such as disputed knowledge of a license suspension). A reduction to misdemeanor DUI still carries serious penalties, but the elimination of the felony designation is enormously significant to the defendant’s future. Whether a reduction is achievable requires an honest assessment of the specific facts by an experienced attorney.
If this is my first DUI ever and my BAC was 0.16%, am I facing jail time?
Yes. Arizona’s mandatory minimum jail sentences apply to Extreme DUI first offenses regardless of prior criminal history. A first offense Extreme DUI carries a mandatory minimum of 30 consecutive days in jail, though the court may suspend up to 21 of those days if the defendant completes alcohol screening and treatment, resulting in a mandatory minimum of 9 days actually served. There is no way to avoid some mandatory jail time for Extreme DUI in Arizona. What an experienced attorney can do is ensure you qualify for the maximum suspension of mandatory time, that all procedural requirements are correctly applied, and that the sentence imposed does not exceed the mandatory minimum.
How does having a prior DUI from another state affect an Arizona DUI charge?
Out-of-state DUI convictions can count toward Arizona’s 84-month lookback period for enhanced penalties and Aggravated DUI triggering. Whether a specific out-of-state conviction counts depends on how the offense was defined in the other state and whether it is substantially equivalent to Arizona’s DUI statute. Your attorney needs to research the specific out-of-state conviction carefully. If the other state’s offense is not substantially equivalent to Arizona DUI — for example, if it involved different elements or a lower legal standard — it may not count as a predicate offense under Arizona law. This analysis can be critically important in cases where an out-of-state prior is the factor that allegedly triggers Aggravated DUI.
What happens if I had a child in the car during a DUI and it is my first ever offense?
Even a first offense DUI with a child under 15 in the vehicle is charged as Aggravated DUI — a Class 6 felony in Arizona for a first or second offense. The mandatory penalties include prison time (not county jail), long-term license revocation, ignition interlock requirements, and a permanent felony record. There is no exception for first-time offenders when a child passenger is involved. The child passenger trigger reflects Arizona’s strongest public policy position in DUI law — that endangering a child while driving drunk warrants felony treatment regardless of the driver’s prior history. Defense of these cases focuses on challenging the elements of the DUI itself — the stop, the testing, the impairment evidence — since the aggravating factor (child passenger) is rarely itself disputed.
What is the 84-month lookback period and how does it work exactly?
The 84-month lookback period is the seven-year window Arizona uses to count prior DUI convictions for purposes of enhanced penalties and Aggravated DUI charging. The clock runs from the date of the prior conviction (not the date of the prior arrest) to the date of the current offense. Prior DUI convictions that occurred more than 84 months before the current offense generally do not count for purposes of the enhanced misdemeanor penalties or the Aggravated DUI trigger based on three DUIs within 84 months. However, prior convictions still appear on your record and may be considered by a judge at sentencing as part of your criminal history even if they fall outside the lookback window. Your attorney needs to carefully calculate whether each prior conviction falls within or outside the window.
Why Schill Law Group Is the Right Choice for Your Arizona DUI Defense
Facing an Extreme DUI or Aggravated DUI charge in Arizona is not something to navigate with generic legal representation or with an attorney who handles DUI cases occasionally alongside other areas of practice. These charges — and particularly Aggravated DUI — require attorneys with deep, specific knowledge of Arizona DUI law, experience in both misdemeanor and felony DUI defense, and familiarity with the courts and prosecutors who will handle your case.
At Schill Law Group, we bring exactly that depth to every DUI case we take. We understand the science behind breath and blood testing and how to challenge it effectively. We know how to analyze police reports, dashcam and body camera footage, field sobriety test scoring sheets, and chemical testing records for the weaknesses that create defense opportunities. We know the difference between a case that has strong grounds for a motion to suppress and one where the defense is better pursued through negotiation or trial. And we give every client an honest, experience-based assessment of their situation — not the optimistic framing designed to get them to sign a retainer, but the truth about what they are facing and what is realistically achievable.
We represent clients facing the full spectrum of Arizona DUI charges — from first-offense Standard DUI through Super Extreme DUI and Aggravated DUI felony charges — in courts throughout Arizona including Maricopa County Superior Court, Scottsdale Municipal Court, Phoenix Municipal Court, and justice courts throughout the valley. We handle the MVD administrative proceeding alongside the criminal case, ensuring both battles are fought simultaneously and that every deadline is met.
If you or someone you care about is facing an Extreme DUI or Aggravated DUI charge in Arizona, do not wait. The 15-day MVD deadline is running. Evidence is perishable. And the decisions made in the earliest days of a DUI case — which attorney to hire, whether to request an MVD hearing, how to respond to the prosecution’s initial approach — often have the largest impact on the ultimate outcome.
Contact Schill Law Group today for a confidential, no-obligation consultation with an experienced Arizona DUI defense attorney. We will review the specific facts of your case, identify every viable defense, explain your realistic options, and give you an honest picture of what comes next.
