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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."
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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 Cedar Hill? 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.
Cedar Hill DWI and Criminal Defense Lawyers
Cedar Hill is a Dallas County community of approximately 49,000 residents located at the junction of US-67 and FM 1382 in southern Dallas County near the Ellis County line. The Cedar Hill Police Department enforces DWI and criminal laws along US-67, FM 1382 (Cedar Hill Road), Belt Line Road, and the commercial areas around Hillside Village and Cedar Hill State Park. Every criminal and DWI case arising from Cedar Hill is prosecuted by the Dallas County District Attorney’s office and heard at the Frank Crowley Courts Building.
Deandra Grant Law’s Dallas office is at 3300 Oak Lawn, Ste 700 which is minutes from the Frank Crowley Courts Building at 133 N. Riverfront Blvd., Dallas, TX 75207, where Dallas County 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: DPS Crime Lab in Garland for most Dallas County outlying agency 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
Dallas County Courts and Enforcement
Courthouse: Frank Crowley Courts Building, 133 N. Riverfront Blvd., Dallas, TX 75207. Misdemeanor cases are heard in the County Criminal Courts. Felony cases go to the District Courts.
Federal cases: Dallas County is in the Northern District of Texas. Attorney James Lee Bright handles federal defense in the Northern District.
Enforcement in Cedar Hill
- Cedar Hill Police Department
- Dallas County Sheriff’s Office
- Texas DPS Troopers (US-67, FM 1382 (Cedar Hill Road), Belt Line Road, and the commercial areas around Hillside Village and Cedar Hill State Park)
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 — no deferred adjudication.
- 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 child support restitution applies if victim was a parent of minor children.
Criminal Defense in Dallas County
Every Dallas County criminal defense begins with Texas Code of Criminal Procedure Article 38.23 which is the exclusionary rule with no good faith exception. Along US-67 and FM 1382, traffic stop analysis is often the most important question in the defense.
We handle the full range of criminal charges arising from Cedar Hill and Dallas County:
- Assault and family violence — including the permanent consequences of the family violence affirmative finding
- Drug possession and delivery — DPS Garland 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 Cedar Hill
- 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 District of Texas.
If you have been arrested for DWI or are facing criminal charges in Cedar Hill 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 been running.
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Client Reviews
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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.”
N. Coulter

(214) 225-7117
Experienced DWI Defense
