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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
Dallas County Criminal Courts Guide
By Attorney Deandra Grant
If you’re facing a criminal charge in Dallas 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 Now⏰ 15-DAY ALR DEADLINE
Arrested for DWI in Richardson? You have 15 days from the date you are served with notice of suspension to request an ALR hearing or your license is automatically suspended, regardless of the criminal outcome.
Richardson DWI and Criminal Defense Lawyers
Richardson is a Dallas County city of approximately 120,000 residents located along US-75 (Central Expressway) north of Dallas, home to the Telecom Corridor and a large professional population. The Richardson Police Department enforces DWI and criminal laws along US-75 (Central Expressway), Campbell Road, and Arapaho Road. Every criminal and DWI case arising from Richardson is prosecuted by the Dallas County District Attorney’s office and heard at the Frank Crowley Courts Building.
Deandra Grant Law’s Dallas office at 3300 Oak Lawn, Ste 700 which is minutes from the Frank Crowley Courts Building where most Richardson cases are heard.
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 Richardson PD arrests. 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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Dallas County Courts and Enforcement
Courthouse: Frank Crowley Courts Building, 133 N. Riverfront Blvd., Dallas, TX 75207.
District Attorney: The vast majority of Richardson lies in Dallas County and is prosecuted by the Dallas County DA’s office. A small portion extends into Collin County. Cases from that area go to the Russell A. Steindam Courts Building in McKinney.
Federal cases: Dallas County is in the Northern District of Texas. The Collin County portion is in the Eastern District. Attorney James Lee Bright handles federal defense in both districts.
Enforcement in Richardson
- Richardson Police Department
- Dallas County Sheriff’s Office
- Texas DPS Troopers (US-75)
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
What Happens at My First DWI Court Date? | Ask Deandra
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Ask Deandra: What Is an ALR Hearing and Do I Need One?
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Ask Deandra: What Are the Penalties for a First DWI in Texas?
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Criminal Defense in Dallas County
Every criminal defense in Dallas 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 Richardson and Dallas 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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On April 24, 2026, the en banc Fifth Circuit vacated the preliminary injunction that had [...]
How Forensic Misconduct Can Unravel a Conviction: The Missy Woods Case and What It Means for Texas
For 29 years, Yvonne “Missy” Woods was a star analyst at the Colorado Bureau of [...]
Can the Algorithm Convict You? TrueAllele and a Defendant’s Right to Cross-Examine the Code
In March 2026, the U.S. Court of Appeals for the Third Circuit handed prosecutors a [...]
Can a Texas Warrant Expire or Does It Follow You Forever?
One of the most common misconceptions about warrants in Texas is that they eventually expire [...]
How Child Sexual Assault Cases Are Investigated in Texas And Where the Process Can Go Wrong
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Indicted for Murder in Texas? How the Grand Jury Process Works and What a Defense Packet Can Do
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Why Choose Deandra Grant Law in Richardson
- Dallas office minutes from Frank Crowley. 3300 Oak Lawn, Ste 700
- 30+ years in Dallas 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 and Eastern Districts of Texas.
If you have been arrested for DWI or are facing criminal charges in Richardson or anywhere in Dallas 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.”