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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
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Rockwall County Criminal Courts Guide By Attorney Deandra Grant
If you’re facing a criminal charge in Rockwall 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 NowRockwall DWI and Criminal Defense Lawyers
Rockwall is the county seat of Rockwall County, located along I-30 east of Dallas on the shores of Lake Ray Hubbard. The Rockwall Police Department enforces DWI and criminal laws along I-30, SH-205, Yellow Jacket Lane, and Ridge Road. Every criminal and DWI case arising from Rockwall is prosecuted by the Rockwall County District Attorney’s office and heard at the Rockwall County Courthouse.
Deandra Grant Law’s Rockwall office at 1101 Ridge Road, Suite 201 which is approximately three minutes from the Rockwall County Courthouse.
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.
Deandra Grant Law – Criminal & DWI Defense Helps Residents Across Texas with Criminal and DWI Defense – Including: Allen , Arlington, Belton, Cleburne, Collin County, Dallas, Denton, Fairview, Fort Worth, Frisco, Gainesville, Granbury, Hood County, Johnson County, Lewisville, Little Elm, McKinney, Park Cities, Parker County, Plano, Princeton, Richardson, Rowlett, Royse City, Southlake, Sunnyvale, The Colony, Waco, and Weatherford.
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 Tyler for most Rockwall County 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
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Rockwall County Courts and Enforcement
Courthouse: Rockwall County Courthouse, 1111 E Yellow Jacket Lane, Rockwall, TX 75087.
District Attorney: Rockwall County District Attorney Kenda Culpepper (named one of the Five Best Prosecutors in America by the Manhattan Institute) oversees a 22-prosecutor office with dedicated divisions for family violence, child abuse, and white-collar crime.
Federal cases: Rockwall County is in the Northern District of Texas. Attorney James Lee Bright handles federal defense in the Northern District.
Enforcement in Rockwall
- Rockwall Police Department
- Rockwall County Sheriff’s Office
- Texas DPS Troopers (I-30, SH-205)
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.
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Criminal Defense in Rockwall County
Every criminal defense in Rockwall 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 Rockwall and Rockwall 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 — Northern District of Texas, handled by James Lee Bright
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Why Choose Deandra Grant Law in Rockwall
- Rockwall office convenient to the courthouse. 1101 Ridge Road, Suite 201.
- 30+ years in Rockwall 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 Rockwall or anywhere in Rockwall 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.”