By Graham Norris

A collision. Someone is injured. Within hours, what started as a DWI investigation becomes a felony case — with prison exposure, a permanent record, and consequences that stretch into every corner of your life. Intoxication assault charges move fast, and the evidence that can defend you has a short shelf life.

These cases sit at the intersection of Texas DWI and assault law, and Tarrant County prosecutors treat them seriously. If you are facing intoxication assault or felony assault charges, early action is not just helpful — it is essential.

Graham Norris has successfully defended many clients against felony assault charges in Tarrant County courts, securing dismissals, reduced charges, and favorable outcomes even in serious felony cases. Contact us now for a free case evaluation using our confidential online form, or call the number below.

Why Clients Choose Norris Legal Group as Their Felony Assault Lawyer in Fort Worth

• Local Tarrant County Court Experience: We understand Fort Worth’s court system and have relationships with local prosecutors
• Proven Results: Over 400 case dismissals and 60+ grand jury “no-bills” across 3,600+ criminal cases
• Personal Attention: Your case isn’t just another file – Graham personally handles your defense
• Emergency Response: Quick action can prevent charges from escalating and protect your rights

Key Takeaways

• Intoxication assault is a third-degree felony carrying 2 to 10 years in prison — even when the crash was an accident
• “It was an accident” is not a defense — accident is built into the offense itself
• The State must prove intoxication, serious bodily injury, AND that the intoxication caused the injury — each element can be challenged
• The 15-day window to request an ALR hearing begins at arrest, running parallel to — and faster than — the criminal case
• These charges combine elements of both Texas DWI law and Texas assault law

What Intoxication Assault Means Under Texas Law

Under Texas Penal Code § 49.07, intoxication assault occurs when a person operates a motor vehicle while intoxicated and, by reason of that intoxication, causes serious bodily injury to another person by accident or mistake. The statute also reaches watercraft, aircraft, and amusement rides.

The State must prove three things to secure a conviction — and each is a genuine battleground:

Intoxication: a BAC of 0.08 or above, or loss of normal mental or physical faculties due to alcohol or drugs.

Serious bodily injury: injury that creates a substantial risk of death, causes serious permanent disfigurement, or results in protracted loss or impairment of a bodily function. This is a high legal bar — injuries that are painful but fully heal may not qualify.

Causation: that the intoxication itself — not road conditions, not the other driver, not a mechanical failure — caused the serious injury. This is often where the felony case is won or lost.

Potential Penalties

Intoxication assault is a third-degree felony: 2 to 10 years in prison and a fine up to $10,000. The charge escalates to a second-degree felony (2–20 years) if the injured person was a firefighter or EMS worker on duty, or if the victim suffered a traumatic brain injury resulting in a persistent vegetative state. If a peace officer or judge was injured while performing official duties, the charge rises to a first-degree felony with a range of 5 to 99 years or life.

Probation is possible in some cases, but Texas law requires jail time as a condition of community supervision — these cases do not end with a fine and a class.

Felony assault charges outside the DWI context — strangulation assault, assault on a public servant, or aggravated assault involving serious bodily injury — carry similar felony ranges and demand the same level of defense.

Collateral Consequences

A conviction reaches far beyond the sentence itself. A permanent felony record will appear on every background check, and a driver’s license suspension can stretch from 90 days to a year on a first offense. Firearm rights are lost under both Texas and federal law. Non-citizens face potential immigration consequences including removal. 

And almost certainly, the injured party — or their insurer — will pursue a civil lawsuit. The civil case and the criminal case run separately, and statements made carelessly in one can become evidence in the other.

What Happens After a Felony Crash Arrest

In most intoxication assault cases, a mandatory blood draw is sought — often by warrant — within hours of arrest. The 15-day window to request an ALR hearing in Texas starts the moment of arrest. Missing that deadline means automatic license suspension with no opportunity to contest it.

The crash scene clears fast. Vehicles get released, skid marks fade, and surveillance footage gets overwritten. The State documents everything from the start — the defense has to move just as quickly to preserve evidence that tells the other side of the story. Say nothing about the crash to investigators, insurers, or on social media. Statements made while injured, medicated, or in shock become exhibits in your case.

Common Defense Strategies

Causation. If another driver ran a red light, if road conditions contributed to the crash, or if a mechanical failure was involved, the felony may fail even if intoxication is established. Accident reconstruction is often the heart of the defense in these cases.

Challenging the blood evidence. Hospital draws, warrant defects, chain-of-custody gaps, and lab error all create openings. Our guide to DWI blood test accuracy in Texas explains how often this evidence is weaker than it appears. Cases involving a warrant for blood draw are addressed in detail on our page covering blood draw warrants in Texas DWI cases.

Serious bodily injury. Medical records frequently tell a more modest story than the indictment. Injuries that are painful but heal may not meet the legal threshold, and that distinction can change the charge entirely.

Intoxication itself. Crash trauma, airbag impact, shock, and certain medical conditions can mimic the signs officers attribute to alcohol or drugs.

Frequently Asked Questions

Is intoxication assault always a felony? Yes — even on a first offense with no prior criminal history. It is a third-degree felony at minimum, and it escalates depending on who was injured and how seriously.

What if the other driver caused the accident? Causation is one of the three elements the State must prove. If another driver’s actions caused the crash, that goes directly to the causation element and can be the basis for a dismissal or acquittal.

Can intoxication assault charges be reduced? In some cases, yes — particularly when the serious bodily injury threshold is contestable or when blood evidence has weaknesses. The specific facts of each case determine what outcomes are realistic.

What is the 15-day ALR deadline and why does it matter? After a DWI-related arrest, you have 15 days to request an administrative license hearing to contest suspension of your driver’s license. Missing it results in automatic suspension. An attorney can also use that hearing to cross-examine the arresting officer before the criminal case reaches trial — a meaningful strategic advantage.

Does a civil lawsuit matter if I beat the criminal case? Yes. Civil and criminal cases operate under different standards of proof. An acquittal does not prevent an injured party from pursuing civil damages, and statements made in either proceeding can be used in the other.

How Norris Legal Group Can Help

Graham Norris is a former Tarrant County prosecutor who has handled more than 3,600 cases and secured over 400 dismissals and more than 60 grand jury no-bills. Because intoxication assault must be indicted before it can go to trial, the grand jury stage is a real opportunity — not a formality — and it requires a defense attorney who prepares for it accordingly.

If the allegation involves a family member and strangulation, see our page on strangulation assault defense in Fort Worth. If the case centers on a DWI crash with injuries, our page on DWI accident defense in Fort Worth covers how those investigations unfold and where the defense begins.

Call Norris Legal Group at (817) 859-8985 for a free consultation. A felony charge is a fight for your future — and it is winnable.