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"Deandra Grant Law fights hard for their clients and is always willing to go above and beyond. They are the best firm for DWI cases in DFW and beyond. Definitely hire them to represent you in any pending cases."
- P. Williams
"Deandra Grant made a tough situation so much better. She listened to my concerns and helped me so much with my case. I would recommend her to anyone needing legal services."
- M. Haley
"Deandra Grant Law 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."
- N. Coulter
As Seen On
Denton County Criminal Courts Guide
By Attorney Deandra Grant
If you’re facing a criminal charge in Denton County, understanding how the local courts work can make the process far less confusing. This guide explains where cases are heard, what each court handles, and what you can expect as your case moves through the system.
Read NowLewisville DWI and Criminal Defense Lawyers
Lewisville is a Denton County city located along I-35E at the southern end of the county, one of the most active DWI enforcement corridors in North Texas. The Lewisville Police Department and Texas DPS conduct active enforcement along I-35E, SH-121, Valley Ridge Boulevard, and FM 3040. Every criminal and DWI case arising from Lewisville is prosecuted by the Denton County District Attorney’s office and heard at the Denton County Courts Building.
Deandra Grant Law’s Denton office at 1317 E McKinney Street, Suite 101A which is directly across the street from the Denton County Courts Building.
Managing Partner Deandra Grant holds a Master’s Degree in Pharmaceutical Science, a Graduate Certificate in Forensic Toxicology, and the ACS-CHAL Forensic Lawyer-Scientist designation. Partner Douglas Huff holds the same ACS-CHAL designation and has completed advanced digital forensics training. For federal matters in the Northern District of Texas, Of Counsel James Lee Bright brings more than 25 years of federal trial experience.
Why the Science Behind Your Case Matters
Most defense attorneys challenge DWI and criminal evidence through legal argument. Deandra Grant Law challenges it through the science.
- Blood testing: Texas DPS Crime Lab in Garland for most Lewisville DWI blood draws. GC-FID methodology, in vitro fermentation, sodium fluoride adequacy, chain of custody, analyst qualifications
- Drug cases: DPS Austin, Armstrong Forensic Laboratory, or NMS for drug analysis. Presence is not impairment.
- Breath testing: Intoxilyzer 9000. Partition ratio variability (1,100:1 to 3,400:1), 15-minute observation period compliance, calibration records, mouth alcohol, GERD/diabetes effects.
- Field sobriety tests: Deandra Grant is a trained SFST instructor who administers and grades the ACS-CHAL Forensic Lawyer-Scientist and DUIDLA Board Certification exams. SFST cross-examination goes to the protocol, not just the result.
- Digital evidence: Cell phone data, social media, CDR records, surveillance footage
- Retrograde extrapolation: Rising BAC defense, Widmark formula, individual elimination rate variability
Denton County Courts and Enforcement
Courthouse: Denton County Courts Building, 1450 E McKinney St., Denton, TX 76209.
District Attorney: The Denton County DA’s office prosecutes all Lewisville cases with specialized units for DWI and other major offense categories.
Federal cases: Denton County is in the Eastern District of Texas. Attorney James Lee Bright handles federal defense in the Eastern District.
Enforcement in Lewisville
- Lewisville Police Department
- Denton County Sheriff’s Office
- Texas DPS Troopers (I-35E, SH-121)
Lewisville DWI & Criminal Defense
Criminal Defense DWI Assault BWI Cocaine Defense Drug Crime Defense DUID DWI with CDL Felony DWI Gun Crime Defense Hit & Run DWI Intoxication Assault Multiple DWIs Murder Defense Theft Defense Underage DWI WarrantsRelated Videos
Important Criminal Videos
Choosing a criminal defense attorney
Why shouldn’t I use a court ordered attorney
Your rights after a drug crime arrest
Steps to take after a drug crime arrest
How can an attorney help me with a warrant?
Consequences of marijuana possession
How long does a criminal defense case take?
DWI Penalties in Texas
- First offense (Class B): Up to 180 days jail, fine up to $2,000, license suspension up to 1 year. Deferred adjudication may be available in some first-time cases — eligibility is fact-specific.
- BAC 0.15+ (Class A): Up to 1 year jail, fine up to $4,000, mandatory ignition interlock. Permanent conviction.
- Second offense (Class A): 72-hour minimum jail as COP, up to 1 year, fine up to $4,000, mandatory interlock.
- Third offense (felony): 2–10 years prison, fine up to $10,000, 10-day minimum jail as COP.
- DWI with child passenger: State jail felony, 180 days–2 years, fine up to $10,000.
- Intoxication assault: Third-degree felony, 2–10 years, fine up to $10,000.
- Intoxication manslaughter: Second-degree felony, 2–20 years. Bentley’s Law restitution applies if victim was a parent of minor children.
Related Blogs
Criminal Defense in Denton County
Every criminal defense in Denton County begins with Texas Code of Criminal Procedure Article 38.23 which is the exclusionary rule with no good faith exception. An unlawful stop, a defective warrant, a search beyond its scope: any of these suppresses the evidence driving the prosecution’s case.
We handle the full range of criminal charges arising from Lewisville and Denton County:
- Assault and family violence — including the permanent consequences of the family violence affirmative finding
- Drug possession and delivery — lab analysis challenged at the chemistry level
- Theft, robbery, fraud, and white-collar offenses
- Gun crimes — UCW, felon in possession, federal firearms charges
- Sex offenses — forensic evidence and digital evidence examined independently
- Murder and homicide — through capital murder
- Federal criminal defense — handled by James Lee Bright
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Why Choose Deandra Grant Law in Lewisville
- Denton office directly across from the courthouse. 1317 E McKinney St, Suite 101A.
- 30+ years in Denton County courts. 500+ trials to verdict statewide
- ACS-CHAL Forensic Lawyer-Scientist — both Deandra Grant and Douglas Huff.
- Master’s Degree in Pharmaceutical Science + Graduate Certificate in Forensic Toxicology. Science-based challenges to blood, breath, and drug evidence that go beyond legal argument.
- Trained SFST Instructor.
- 17 published law books. Including The Texas DWI Manual.
- Texas Super Lawyer since 2011. AV® Preeminent rated by Martindale-Hubbell®.
- Federal defense. James Lee Bright — Northern District of Texas.
If you have been arrested for DWI or are facing criminal charges in Lewisville or anywhere in Denton County, call (214) 225-7117 for a free, confidential consultation. Or schedule online at texasdwisite.com. The 15-day ALR deadline may already be running.
Client Reviews
“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.”