In Texas, intoxication assault with a vehicle causing serious bodily injury is a third-degree felony under Penal Code Section 49.07, punishable by 2 to 10 years in prison and a fine of up to $10,000.1State of Texas. Texas Penal Code 12.34 – Third Degree Felony Punishment The charge applies when a driver’s intoxication causes severe harm to another person, and it can climb to a first-degree felony with a possible life sentence when the person hurt is a peace officer or judge on duty.
What the State Has to Prove
Three elements have to line up for a conviction: you were operating a motor vehicle in a public place, you were intoxicated while doing so, and your intoxication caused serious bodily injury to another person.2State of Texas. Texas Penal Code 49.07 – Intoxication Assault
Texas defines intoxication two ways. Either your blood alcohol concentration was 0.08 or higher, or you had lost the normal use of your mental or physical faculties because of alcohol, a drug, a controlled substance, or a combination.3State of Texas. Texas Penal Code 49.01 – Definitions Prosecutors only need one. You can be convicted with a BAC below 0.08 if the state shows your faculties were impaired.
Causation is where many cases actually turn. The state has to connect your impairment to the crash and the crash to the injury. If another driver ran a red light and hit you, being intoxicated at the time does not by itself make you responsible for their injuries.
What Counts as Serious Bodily Injury
Not every injury meets the bar. Texas defines serious bodily injury as harm that creates a substantial risk of death, causes serious permanent disfigurement, or produces protracted loss or impairment of any body part or organ.2State of Texas. Texas Penal Code 49.07 – Intoxication Assault An injury that causes death also qualifies.4State of Texas. Texas Penal Code 1.07 – Definitions
In practice, that covers broken bones requiring surgery, traumatic brain injuries, spinal cord damage, internal organ trauma, severe burns, and lasting scarring. A sprained wrist that fully heals in a few weeks probably falls short. A shattered pelvis that leaves permanent mobility limits almost certainly clears the threshold. Injuries below the bar lead to lesser charges or no felony at all, so whether an injury qualifies is often litigated directly.
Prison Time and When the Charge Escalates
The baseline offense is a third-degree felony: 2 to 10 years and a fine up to $10,000.1State of Texas. Texas Penal Code 12.34 – Third Degree Felony Punishment The charge gets worse based on who was hurt and how badly:
- Second-degree felony, 2 to 20 years, if the injured person was a firefighter or emergency medical services worker performing official duties.5State of Texas. Texas Penal Code 49.09 – Enhanced Offenses and Penalties
- Second-degree felony, 2 to 20 years, if the injury was a traumatic brain injury that left the victim in a persistent vegetative state.5State of Texas. Texas Penal Code 49.09 – Enhanced Offenses and Penalties
- First-degree felony, 5 to 99 years or life, if the injured person was a peace officer or judge performing official duties.5State of Texas. Texas Penal Code 49.09 – Enhanced Offenses and Penalties
The maximum fine stays at $10,000 across all three felony degrees.6State of Texas. Texas Penal Code 12.33 – Second Degree Felony Punishment What enhancement changes is prison time, not the dollar amount.
Blood Draws and the Implied Consent Trap
Driving on Texas roads carries implied consent to a breath or blood sample after a lawful arrest for a suspected intoxication offense. Refusing does not necessarily protect you. When an officer believes a crash caused serious bodily injury or death, the officer is required to obtain a blood specimen, typically through a warrant signed by a judge who is on call.7State of Texas. Texas Transportation Code 724.012 – Taking of Specimen Refusing a serious-injury investigation rarely stops the draw from happening.
Refusal does bring its own hit through the Administrative License Revocation program. A first refusal suspends your license for 180 days. If your record shows any alcohol- or drug-related enforcement contact within the past ten years, the suspension runs two years.8State of Texas. Texas Transportation Code 724.035 – Suspension or Denial of License The suspension kicks in on day 40 after notice, and you have only 15 days to request a hearing to fight it.9Texas Department of Public Safety. Administrative License Revocation (ALR) Program Miss that 15-day window and the suspension is automatic.
License, SR-22, and Ignition Interlock
On top of any ALR suspension, a conviction brings a separate court-ordered license suspension of 90 days to one year. A second intoxication assault conviction within five years triggers a mandatory one-year suspension.10State of Texas. Texas Transportation Code 521.344 – Suspension for Offenses Involving Intoxication
When your license comes back, you have to file an SR-22 certificate of financial responsibility with the Texas Department of Public Safety and keep it active for at least two years from the date of conviction.11Texas Department of Public Safety. Section 9 – SR-22 Proof of Financial Responsibility An SR-22 is proof you carry the required minimum auto insurance, and insurers charge substantially more for drivers who need one. Any lapse during the two years triggers additional enforcement and reinstatement fees.
Courts also order an ignition interlock device. For intoxication assault the interlock is mandatory both as a bond condition before trial and as a condition of probation after conviction.12State of Texas. Texas Code of Criminal Procedure Article 42A.408 – Use of Ignition Interlock Device You pay for installation and monthly monitoring yourself.
Defenses That Actually Move These Cases
Causation is often the strongest line. Your attorney can argue the crash would have happened anyway: the other driver caused it, road conditions were the real factor, or a vehicle malfunction contributed. If the state cannot prove your impairment caused the collision, the charge fails even with a BAC well above 0.08.
The BAC evidence itself is frequently contested. Breath machines need regular calibration. Blood samples have to follow strict chain-of-custody from draw to lab. Equipment that was not maintained, a sample that sat unrefrigerated, or a technician who skipped protocol can all undermine the result, and a blood test taken without a valid warrant can sometimes be suppressed outright.
The rising blood alcohol defense argues your BAC was below 0.08 while you were actually driving and climbed above it by the time you were tested. Alcohol takes time to absorb, so a reading 30 to 60 minutes after a stop can be meaningfully higher than the number at the wheel. The defense works best when the gap between the stop and the test is long.
Finally, the serious bodily injury definition itself can be fought. If the victim’s injuries did not create a risk of death, leave permanent disfigurement, or cause long-term impairment, the charge may drop to a lesser offense.
Probation and Its Conditions
Probation is possible, especially for first-time offenders without aggravating factors, but the conditions are heavy: substance abuse evaluation and treatment, regular meetings with a probation officer, random drug and alcohol testing, community service, and attendance at a victim impact panel. Monthly supervision fees add up.
Courts routinely order restitution for the victim’s medical bills, lost wages, and other costs tied to the injury. Restitution is separate from any civil suit, and failing to pay has its own consequences. Violating probation can send you to prison for the remainder of the original sentence, and judges have little patience for missed check-ins, failed tests, or skipped treatment.
Civil Lawsuit on Top of the Criminal Case
A criminal conviction does not resolve the victim’s financial losses. Victims commonly file civil suits for medical expenses, lost income, pain and suffering, and diminished quality of life, and those cases proceed independently of the prosecution.
Civil cases use a lower standard: more likely than not that you caused the harm. Because a criminal conviction already proved your conduct beyond a reasonable doubt, civil liability afterward is often straightforward. Texas courts can also award punitive damages in cases involving intoxicated driving, and combined with compensatory damages for care, rehabilitation, and lost earning capacity, a civil judgment can dwarf the criminal fine.
What Stays on Your Record
A felony conviction in Texas cannot be expunged. You may eventually qualify for an order of nondisclosure, which seals the record from most public background checks, but the waiting period for a felony is generally five years after you complete your sentence, and some prior convictions disqualify you entirely.
Professional licensing boards in nursing, education, law, and medicine typically require disclosure of felony convictions, and a conviction involving intoxication and driving must usually be reported. Boards have authority to deny, suspend, or revoke a license on that basis. The career impact can outlast the sentence by decades.