Vehicular Assault Defense in Phoenix

Vehicle-Based Aggravated Assault Defense Informed by Former Police & Prosecutor Experience

Arizona doesn’t have a separate offense expressly titled vehicular assault or vehicular manslaughter. Instead, conduct commonly described as Vehicular Assault may be prosecuted under the state’s assault statutes, including A.R.S. § 13-1203 and the aggravated assault provisions of A.R.S. § 13-1204. These cases can arise from allegations involving vehicle use, physical injury, DUI, or related conduct, but an accusation isn’t a conclusion that an offense occurred.

DUI collisions aren’t the only incidents that can lead to vehicle-based aggravated assault allegations. When an injury or death occurs, prosecutors may also pursue a drunk driving offense or other charges based on the collision facts. We examine the specific theory alleged rather than treating every injury accident as the same type of case.

Arizona Aggravated Assault Laws for Vehicle-Related Injuries

A.R.S. § 13-1203 describes assault in several ways, including intentionally, knowingly, or recklessly causing physical injury. A.R.S. § 13-1204 can elevate an assault when the alleged conduct causes serious physical injury or involves a deadly weapon or dangerous instrument. Aggravated assault involving a vehicle therefore depends on the injury, the vehicle’s alleged use, the required mental state, and the prosecution’s ability to prove every element beyond a reasonable doubt.

Several definitions can shape a vehicle-related aggravated assault case:

• Physical Injury: Arizona law defines this as an impairment of physical condition.
• Serious Physical Injury: This includes an injury creating a reasonable risk of death, serious and permanent disfigurement, serious impairment of health, or loss or protracted impairment of an organ or limb.
• Dangerous Instrument: An object can qualify when, under the circumstances in which it was used, attempted to be used, or threatened to be used, it was readily capable of causing death or serious physical injury. A vehicle may meet this definition depending on the circumstances.
• Recklessness: This means consciously disregarding a substantial and unjustifiable risk in a way that grossly deviates from reasonable conduct. Arizona law also addresses voluntary intoxication when intoxication is the sole reason a person was unaware of the risk.

The state must connect these definitions to the actual evidence. An injury doesn’t automatically establish serious physical injury, and a vehicle isn’t automatically treated as a dangerous instrument in every collision. The charging documents and facts must support the particular aggravated assault theory alleged.

Defense Issues in Vehicular Assault Cases

Causation can be a central issue when prosecutors allege that intoxication, reckless conduct, or another act caused the collision and resulting injury. A measured alcohol concentration, a DUI allegation, or the existence of an injury doesn’t by itself resolve who caused the crash or whether the required mental state existed. Weather, road conditions, another driver’s actions, mechanical problems, witness reliability, and the sequence of events may all require examination when supported by the evidence.

We investigate whether other factors caused or contributed to the collision. Relevant materials can include crash reports, scene photographs, witness accounts, vehicle data, body-worn camera footage, medical records, toxicology results, and accident reconstruction evidence. We also compare those materials with the prosecution’s account to identify inconsistencies and determine whether the evidence supports causation and recklessness.

Blood Alcohol Testing & Collection Procedures

Our lawyers may also examine whether a breath, blood, or urine test produced reliable results and was administered according to applicable procedures. The review may address sample collection, storage, documentation, equipment records, timing, and the interpretation of toxicology findings. Problems with testing don’t automatically dispose of a case, but they can affect how the evidence should be evaluated and whether the state can prove a related DUI charge.

Police Investigation & Charging Decisions

Founding partner Attorney Anthony Knowles formerly served as an Arizona police officer and has more than 20 years of experience with the Arizona criminal justice system. Our team also includes former prosecutors. That background informs how we review traffic stops, crash investigations, officer observations, arrest procedures, interviews, and the steps prosecutors use to build a felony case.

We build the defense around the specific charging documents, collision evidence, injury records, testing procedures, witness accounts, and sentencing allegations. Our preparation addresses each stage of the case, including trial when necessary. A case filed in Maricopa County Superior Court may present legal and factual issues that aren’t apparent in the initial police report.

Felony Classification & Sentencing Exposure

Aggravated assault based on serious physical injury or use of a dangerous instrument is generally charged as a class 3 felony under the applicable provisions of A.R.S. § 13-1204. It may be classified as a class 2 felony when the victim is under 15, and the statutory requirements are met. The classification and potential sentence depend on the charged subsection, victim facts, prior record, aggravating or mitigating circumstances, and any dangerous-offense allegation.

For a first non-dangerous class 3 felony, A.R.S. § 13-702 lists a minimum term of 2.5 years, a presumptive term of 3.5 years, and a maximum term of 7 years, subject to applicable statutes and findings. A first dangerous class 3 felony falls under a different framework. A.R.S. § 13-704 lists minimum, presumptive, and maximum terms of 5, 7.5, and 15 years, with restrictions on probation eligibility under that statute.

Those figures aren’t a single fixed range for every vehicle-related case. Whether the prosecution alleges and proves a dangerous offense, along with prior convictions and other sentencing factors, can materially change the available range. A lawyer must review the actual indictment or charging document before assessing a person’s exposure.

A related DUI conviction may also bring DUI-related penalties. Depending on the charge, conviction, and administrative or court action, possible consequences can include license suspension, community restitution, fines, and an ignition interlock device (IID) requirement. These consequences are separate from the felony sentencing analysis and must be evaluated under the specific DUI allegations.

Get a Free & Confidential Phoenix Case Review

Contacting our Phoenix defense attorneys allows you to discuss the allegations before choosing counsel. You have the right to legal representation and should feel confident in that decision. Our firm, Knowles Law Firm, PLC, brings former police and prosecution insight to the investigation, evidence review, and preparation of serious felony cases.

We build each strategy around the client’s circumstances rather than applying a cookie-cutter defense. A free initial case review gives you an opportunity to discuss the allegations, understand the immediate issues, and ask questions before making a commitment.