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As Seen On






Texas DWI Manual
By Attorney Deandra Grant
Fighting DWI charges can present many challenges, not only for the defense, but prosecutors as well. This is why it is important to be armed with the necessary knowledge so you understand the DWI process.
Attorney Deandra M. Grant is the co-author of the Texas DWI Manual, offering legal advice to both clients and fellow attorneys.
Learn MoreFort Worth Multiple DWI Lawyers
A second DWI in Texas is a Class A misdemeanor. A third DWI is a third-degree felony. A fourth DWI with prior felony convictions can be enhanced to a second-degree felony, or (with two prior penitentiary trips) to a habitual-offender sentence of 25 years to life. And priors do not expire in Texas: the state’s lookback period was repealed in 2005, which means a 25-year-old DWI conviction enhances today’s case the same way a 2-year-old conviction does.
The § 49.09(h) mandatory jail minimums also catch many defendants by surprise. Even when a judge grants probation on a repeat-DWI case, the statute requires mandatory jail time as a condition of that probation (72 hours to 30 days on a second DWI, 10 days on a DWI 3rd). Probation does not mean no jail on a repeat-DWI case. These are the statutory floors, and they are not waivable.
Deandra Grant Law represents clients facing second, third, and subsequent DWI charges in Fort Worth, Arlington, North Richland Hills, Mansfield, Southlake, Grapevine, and throughout Tarrant County. Call (214) 225-7117 to discuss your case.
The Penal Code § 49.09 Enhancement Framework
Texas’s repeat-DWI statute is Penal Code § 49.09. The enhancement structure is:
- First DWI — Penal Code § 49.04. Class B misdemeanor (Class A if BAC 0.15+ under § 49.04(d)).
- Second DWI — § 49.09(a). Class A misdemeanor, regardless of BAC.
- Third-or-subsequent DWI — § 49.09(b)(2). Third-degree felony, regardless of BAC.
- DWI with prior Intoxication Manslaughter or Intoxication Assault — § 49.09(b)(1). Third-degree felony.
- Fourth or subsequent DWI with prior penitentiary DWI convictions can be enhanced under Penal Code § 12.42(a) to second-degree felony (2 to 20 years) or under § 12.42(d) to habitual offender (25 years to life).
No Lookback in Texas — Priors Never Expire
One of the most common misconceptions about Texas DWI law: priors never expire. Some states apply a lookback period such as a prior conviction more than 10 years old (or 7 years, or some other interval) does not enhance the current case. Texas used to have such a rule, under former Penal Code § 49.09(e). That provision was repealed in 2005. Since that repeal:
- A DWI conviction from any time in the defendant’s life can be used to enhance the current charge.
- Out-of-state DWI convictions from states that use different terminology (DUI, OUI, OWI) can be used to enhance a Texas DWI under § 49.09(c), which specifically includes “an offense under the laws of another state that prohibits the operation of a motor vehicle while intoxicated.”
- Juvenile DWI adjudications may be usable to enhance an adult DWI under some circumstances.
- A 20-year-old DWI from college counts the same as one from last year.
This is materially different from how most defendants expect the law to work, and it is frequently the reason a “second DWI” charge comes as a surprise decades after the first.
Second DWI — Penal Code § 49.09(a)
Penalty Structure
- Class A misdemeanor.
- 30 days to 1 year in county jail.
- Fine up to $4,000.
- Transportation Code § 709.001 statutory fine
- Driver’s license suspension of 180 days to 2 years under Transportation Code Chapter 521.
- 80 to 200 hours community service.
§ 49.09(h) Mandatory Jail Minimum on Probation
This is the provision most frequently missed in discussions of second-DWI cases. Under Penal Code § 49.09(h), if the court grants probation on a second DWI, the defendant must serve 72 hours to 30 days in county jail as a condition of probation. This is not the same as the jail range on the conviction itself; it is a separate statutory floor that attaches even to a probated sentence.
DWI 3rd — Penal Code § 49.09(b)
Penalty Structure
- Third-degree felony.
- 2 to 10 years in the Texas Department of Criminal Justice.
- Fine up to $10,000.
- Transportation Code § 709.001 statutory fine
- Driver’s license suspension of 1 year to 2 years under Transportation Code Chapter 521.
- Mandatory ignition interlock under CCP Article 17.441.
- Probation available under CCP Article 42A.053 — third DWI is not on the § 42A.054 3g list, so community supervision can be granted by the judge without jury recommendation.
- § 49.09(h) mandatory minimum of 10 days in jail as a condition of probation.
Fourth or Subsequent DWI — Enhancement to Second-Degree Felony and Beyond
A fourth DWI with prior felony DWI convictions can be enhanced in two ways:
Penal Code § 12.42(a) — Second-Degree Enhancement
A third-degree felony is enhanced to second-degree felony (2 to 20 years) when the defendant has one prior final felony conviction. For a defendant with one prior felony DWI, a fourth DWI charge can be enhanced to a 2-to-20 range.
Penal Code § 12.42(d) — Habitual Offender
A felony case is enhanced to a habitual-offender sentence of 25 years to life when the defendant has two prior final penitentiary convictions. For a defendant with two or more prior felony DWI convictions, a new DWI charge can carry a 25-to-life range which is a consequence many defendants never anticipate.
Habitual-offender enhancements in DWI cases are among the most severe sentences available outside of capital and first-degree-felony cases. Defending them requires attacking the predicate convictions (jurisdiction, elements, plea waivers), challenging the reliability of the current case, and (when appropriate) seeking negotiated resolutions that avoid the enhancement paragraphs.
Mandatory Ignition Interlock Under CCP Article 17.441
For any second-or-more DWI case, Code of Criminal Procedure Article 17.441 mandates ignition interlock as a condition of bond. The court has no discretion to waive this requirement absent unusual circumstances. Interlock is also typically required as a condition of any occupational or restricted driver’s license issued during the license suspension period. For repeat DWI defendants, interlock is often a multi-year reality extending well beyond the criminal case.
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ALR and License Consequences — Stacking Suspensions
The Administrative License Revocation consequences of a second or third DWI stack with the criminal-court suspension:
- Failed test (BAC 0.08 or higher): 1-year ALR suspension on a second failed test; 2-year suspension on a refusal after a prior suspension.
- Refusal: 2-year ALR suspension after a prior ALR suspension.
- Criminal conviction suspension: 180 days to 2 years (2nd DWI); 1 to 2 years (3rd DWI).
How Multiple DWI Cases Are Defended
Attacking the Priors
A prior that cannot be proved cannot enhance. Challenges to the predicate convictions (jurisdiction, defective plea waivers, inadequate admonishments, identity, and prior-judgment reliability) can reduce a second DWI to first-offense treatment or a third DWI to misdemeanor treatment. For defendants with very old priors, defective judgment paperwork is a recurring issue.
Forensic Challenges on the Current Case
Ethanol analysis in Texas is performed by headspace GC-FID. Drug analysis (for cases involving both alcohol and drug allegations) is performed by LC-MS/MS. Chain of custody, preservative balance, calibration, column chemistry, and measurement uncertainty are all contestable.
Fourth Amendment and Article 38.23 Suppression
Repeat-DWI cases are subject to the same constitutional protections as first-offense cases. Stops, field sobriety testing, arrests, and blood warrants must comply with the Fourth Amendment and Texas Code of Criminal Procedure Article 38.23. Suppression motions frequently dispose of cases that would otherwise result in substantial prison sentences.
ALR as Discovery
Requesting the ALR hearing and taking the arresting officer’s testimony under oath months before the criminal case reaches its first setting produces discovery that shapes the criminal defense strategy (and sometimes produces admissions or inconsistencies that defeat the state’s criminal case).
Sentencing Mitigation on Felony Cases
When conviction on a third DWI is likely, the defense shifts to mitigation such as treatment compliance, employment stability, family responsibilities, and rehabilitation evidence that can produce probation rather than prison, and when prison is unavoidable, a sentence at or near the minimum.
Where Tarrant County Multiple DWI Cases Are Heard
Second DWI misdemeanor cases are filed in the Tarrant County Criminal Courts at the Tim Curry Criminal Justice Center, 401 West Belknap Street, Fort Worth. Third-or-subsequent felony DWI cases are filed in the Tarrant County District Courts, also at the Tim Curry CJC. The Tarrant County Criminal District Attorney’s Office (led by Phil Sorrells) prosecutes all criminal cases in Tarrant County, both felony and misdemeanor.
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Frequently Asked Questions
How long do priors count against me?
Forever. Texas repealed its DWI lookback period in 2005. A 25-year-old DWI conviction enhances today’s case the same as a 2-year-old one. Out-of-state DWI, DUI, OUI, and OWI convictions also count under Penal Code § 49.09(c).
Can I get probation on a second or third DWI?
Probation is available on both. But the Penal Code § 49.09(h) mandatory jail minimums attach to probation: 72 hours to 30 days on a second DWI; 10 days on a third DWI. These minimums are statutory, not negotiable, and not waivable.
Is a third DWI a felony?
Yes. A third DWI under Penal Code § 49.09(b)(2) is a third-degree felony with a punishment range of 2 to 10 years in the Texas Department of Criminal Justice and a fine up to $10,000. A prior Intoxication Manslaughter or Intoxication Assault conviction will also elevate a current DWI to third-degree felony.
What’s the worst-case sentence on a fourth DWI?
Depending on the defendant’s prior felony record, a fourth DWI can be enhanced under Penal Code § 12.42(a) to second-degree felony (2 to 20 years) or under § 12.42(d) to habitual-offender (25 years to life). Habitual-offender enhancements in DWI cases are rare but very real.
My out-of-state DWI shouldn’t count, should it?
Generally yes, it counts. Penal Code § 49.09(c) specifically includes “an offense under the laws of another state that prohibits the operation of a motor vehicle while intoxicated.” Whether a specific out-of-state conviction qualifies is a legal question that depends on the elements of the other state’s statute. Some out-of-state convictions can be successfully challenged as non-enhancing, but the default is that they count.
Is interlock mandatory?
Yes. Under CCP Article 17.441, interlock is mandatory as a condition of bond on any second-or-more DWI case. Interlock is also typically required as a condition of any occupational license issued during the license suspension period. For many repeat-DWI defendants, interlock becomes a multi-year reality.
About Deandra Grant Law
Deandra Grant Law is a Texas criminal defense firm with offices in Fort Worth, Dallas, Allen, Denton, Waco, and Rockwall. Our DWI practice is deep on the repeat-offender side where the forensic detail and the procedural defenses matter most.
Deandra M. Grant, Managing Partner
- More than 30 years in practice, focused on criminal defense and DWI
- Former prosecutor
- J.D.; M.S. in Pharmaceutical Sciences
- Graduate Certificate in Forensic Toxicology
- ACS-CHAL Forensic Lawyer-Scientist from the American Chemical Society
- Standardized Field Sobriety Test (SFST) Instructor
- Texas Super Lawyer since 2011
- Author of 17 law books including The Texas DWI Manual
- AV Preeminent rated by Martindale-Hubbell
- Executive Director, DUI Defense Lawyers Association (DUIDLA)
Douglas E. Huff, Partner
- ACS-CHAL Forensic Lawyer-Scientist
- Digital forensics and electronic evidence training
- Extensive Texas trial experience
James Lee Bright, Of Counsel
- National federal criminal defense practice
- Admitted to all four Texas federal districts (including the Northern District of Texas, which covers Tarrant County), the District of Columbia, the Fifth Circuit Court of Appeals, and the Supreme Court of the United States
Contact Our Fort Worth Multiple DWI Attorneys
Multiple-DWI cases reward defense preparation more than almost any other criminal case. The priors must be investigated (they are frequently not what the state represents them to be). The current case must be forensically challenged. The ALR must be preserved and litigated. The § 49.09(h) mandatory minimums must be planned around in every scenario. Probation must be pursued with mitigation that addresses the pattern, not just the incident. This is forensic, procedural, and long-view defense work and not the kind of case where a quick plea protects the defendant’s interests.
Call Deandra Grant Law at (214) 225-7117 to schedule a consultation. We serve Fort Worth, Arlington, North Richland Hills, Mansfield, Southlake, Grapevine, and all of Tarrant County from our Fort Worth office.
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“Deandra Grant Law – Criminal & DWI Defense handled my case with diligence and professionalism. Deandra Grant’s reputation is stellar and now I know why. She has a team of individuals who provide quality service.”
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(214) 225-7117
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