Dallas County DWI Defense

Dallas DWI Lawyer

Science-driven defense for every Dallas County DWI charge, from a first offense to felony DWI, at Frank Crowley and in the SWIFS blood work behind it.

  • ACS-CHAL Forensic Lawyer-Scientists
  • Former Prosecutor
  • Author, The Texas DWI Manual
  • 500+ Cases Tried to Verdict

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    The Short Answer

    A Dallas DWI is prosecuted by the Dallas County District Attorney at the Frank Crowley Courts Building, with misdemeanors in the County Criminal Courts and felonies in the Criminal District Courts. Blood is tested at the county's SWIFS lab. The license case runs separately: an ALR hearing must be requested within 15 days of the notice of suspension.

    DWI Defense in Dallas

    Facing a DWI in Dallas County?

    Deandra Grant Law defends people charged with DWI in Dallas and throughout Dallas County. We handle every level of the offense, from a first-offense DWI to high-BAC, repeat, and felony charges, including DWI with a child passenger, intoxication assault, intoxication manslaughter, and drugged driving. Dallas clients work from our Oak Lawn headquarters, eight minutes from the courthouse where their case will be heard.

    A DWI charge is not a conviction, and the evidence behind it is rarely as solid as it looks. This firm has tried more than 500 cases to verdict and built its reputation on the science, led by a forensic lawyer-scientist who wrote The Texas DWI Manual and trains other DWI attorneys across the state. That matters more in Dallas than almost anywhere: the county tests blood at its own SWIFS lab rather than the state DPS lab, which means its methods, calibration records, and analysts can be examined and challenged on their own terms. We request the underlying data and read it at the chemistry level.

    Getting started costs nothing. Call or schedule online to talk through what happened and understand your options. The sooner we start, the more we can protect, and in Texas you have just 15 days from the notice of suspension to request the hearing that keeps your license.

    15-Day Deadline

    Your license is on a 15-day clock

    It starts when you receive the notice of suspension, not automatically at arrest. In a blood case that notice often arrives by mail weeks later, so the deadline may still be ahead of you.

    What We Defend

    Dallas DWI Charges We Handle

    Every Dallas County DWI charge, from a first offense to intoxication manslaughter.

    First-Offense DWI

    Driving while intoxicated with no prior convictions, a Class B misdemeanor.

    First DWI penalties

    Second DWI

    A DWI with one prior conviction, a Class A misdemeanor with mandatory jail time.

    Second DWI penalties

    Third DWI

    A DWI with two prior convictions, a third-degree felony carrying two to ten years.

    Third DWI penalties

    DWI 0.15

    A result of 0.15 or higher raises a first DWI to Class A.

    Why 0.15 matters

    Felony DWI

    Two priors, a child passenger, or serious injury make a DWI felony.

    The felony threshold

    DWI with Child Passenger

    A passenger under fifteen turns a misdemeanor DWI into a felony.

    Why this is a felony

    Intoxication Assault

    Causing serious bodily injury to another while intoxicated, a third-degree felony.

    Assault penalties

    Intoxication Manslaughter

    Causing a death while intoxicated, a second-degree felony carrying prison time.

    Manslaughter penalties

    Underage DWI

    Drivers under twenty-one face DUI charges for any detectable amount of alcohol.

    DWI vs. DUI

    Drug DWI (DUID)

    A DWI where the intoxicant is a drug, prescribed or illegal, with no breath number involved.

    How they prove it

    Marijuana DWI

    Marijuana and edibles can support a DWI without any measurable level.

    The marijuana rules

    Prescription Drug DWI

    A valid prescription is no defense if the medication impaired your driving.

    Prescription rules

    CDL DWI

    A commercial license is disqualified even for a DWI in your own car.

    CDL consequences

    Boating DWI (BWI)

    Operating a boat while intoxicated, prosecuted much like a driving DWI.

    The BWI rules
    Local Knowledge

    What Actually Happens to a DWI in Dallas County

    Dallas runs its DWI cases differently from the counties around it. These are the local specifics that shape a defense here.

    Where your case is heard

    Dallas DWI cases run through the Frank Crowley Courts Building. Misdemeanors are set in the County Criminal Courts on the 3rd and 4th floors, felonies in the Criminal District Courts on 5 through 7.

    Who prosecutes

    The Dallas County District Attorney charges DWIs through separate misdemeanor and felony divisions, each with its own process and timelines.

    Your blood goes to SWIFS

    Dallas tests blood at the county's own Southwestern Institute of Forensic Sciences rather than the state DPS lab. Its methods and records are discoverable, and we read them at the chemistry level.

    Jail release

    After a Dallas arrest you're booked at the Lew Sterrett Justice Center, next door to the courthouse. Bond and release conditions are set before your first court date.

    No DWI diversion in Dallas

    Unlike some neighboring counties, Dallas does not offer a DWI pretrial diversion program. DIVERT covers drug cases only, which makes the defense itself the path to a better outcome here.

    Visit the Dallas Office Explore the Dallas County Court Guide
    Case Results

    Recent Dallas County Results

    Real outcomes from real Dallas County cases. Past results do not guarantee a similar outcome.

    Dismissed Apr 2026
    Charge

    DWI

    DWI case dismissed

    Dallas County Pre-Trial
    Dismissed Mar 2026
    Charge

    DWI

    DWI charges dropped

    Dallas County Pre-Trial
    Dismissed Jan 2026
    Charge

    DWI 0.15

    DWI with high blood alcohol content dismissed

    Dallas County Pre-Trial

    Prior results do not guarantee a similar outcome. Each case is decided on its own facts.

    All Case Results
    Why Deandra Grant Law

    Why Dallas Clients Choose This Firm

    Every firm says it will fight for you. What actually decides a DWI case is how well your lawyer understands the evidence.

    Former Dallas County Prosecutor
    Deandra Grant prosecuted DWI cases as a Dallas County Assistant DA, so she knows exactly how these cases get built.
    Two Forensic Lawyer-Scientists
    Deandra Grant and Douglas Huff both hold the ACS-CHAL Forensic Lawyer-Scientist designation from the American Chemical Society.
    Science Behind the Law
    An M.S. in Pharmaceutical Science and a Graduate Certificate in Forensic Toxicology, plus Intoxilyzer operator and maintenance training.
    500+ Trials Since 1994
    We work only in DWI and criminal defense, and we have tried more than 500 cases to verdict.
    We Wrote the Manual
    Deandra Grant authored The Texas DWI Manual for James Publishing, the reference other lawyers use.
    We Read the Lab
    Dallas blood goes to SWIFS. We request the chromatograms, calibration records, and QC data, and we challenge them at the chemistry level, not the summary the State hands over.
    After You Hire Us

    What We Actually Do on Every Case

    From the first call, in order:

    • Request your ALR hearing before the 15-day deadline and use it to question the officer under oath
    • Demand the dash and body camera video before it’s destroyed
    • Pull the full discovery file: offense report, calibration and maintenance logs, lab records, certifications
    • Read the underlying chemistry ourselves: the chromatograms, the QC data, not the summary report
    • Re-score the field sobriety tests against NHTSA protocol, on video
    • File the motions the evidence supports, because suppression is how DWI cases end
    • Build your mitigation file, with clinical assessments, at no cost to you
    • Try the case if the offer isn’t right, which is why the offers get better

    We quote a flat fee after a consultation at no cost to you, so the investment is known before you commit.

    Reviews

    What Dallas Clients Say

    613 verified reviews and counting. Real Texans, real charges, real outcomes.

    ★★★★★

    Amazing law practice!! They work so smoothly together!! Highly recommend if you need help getting out of a pickle!!

    KP
    Kaylie Prachyl
    ★★★★★

    There aren’t enough words to express how grateful I am for Kevin Sheneberger. From the moment he took my case, he carried the weight of it so I…

    NR
    Natania Reyes
    ★★★★★

    In the middle of circumstances that doesn't make you proud. Have a supportive and positive lawyer by your side can change the perspective and see your mistakes as…

    ED
    Els Dallas
    Read All Reviews
    Attorneys

    The Attorneys in These Courts

    Forensic-science training, three decades of Dallas County defense, and the courtroom record to back it up.

    All Attorneys
    Recognition

    Recognized by the Legal Profession and the Press

    Peer-reviewed ratings, bar honors, and the newsrooms that call us when a DWI story breaks.

    Awards & ratings
    As seen in
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    Across the County

    Serving All of Dallas County

    We defend DWI cases from every corner of Dallas County: Dallas itself, from Oak Lawn and Uptown to Deep Ellum and downtown, plus Garland, Irving, Mesquite, Grand Prairie, Carrollton, Richardson, Rowlett, DeSoto, Duncanville, Cedar Hill, and Lancaster. If the arrest happened in Dallas County, the case lands at Frank Crowley, and that is a building we work in every week. A few of these cities cross a county line, so a stop in the Rockwall County side of Rowlett or the Denton County side of Carrollton is heard in that county instead. We appear in those courts too.

    Start Here

    Wherever You Are in Your Case, Start Here

    A DWI case has many moving parts. Find the question you're asking right now.

    “I’m out of jail. Now what?”

    What happens next, from booking through your first court date, and the deadline that comes first.

    Booking to court date

    “Will I still be able to drive?”

    A DWI arrest starts a second, separate case against your license, and it runs on a 15-day clock.

    Save your license

    “What even counts as a DWI?”

    What Texas actually has to prove, and the three elements every case rests on.

    The three elements

    “What exactly am I charged with?”

    Texas charges DWI at six levels, and four facts can turn a misdemeanor into a felony.

    See the charge levels

    “How bad can the sentence get?”

    What a first, second, or felony DWI carries in jail time, fines, and suspension.

    Jail, fines, suspension

    “Is their evidence any good?”

    Breath, blood, and roadside tests: what each measures and where each one goes wrong.

    Where the tests fail

    “Was the stop even legal?”

    What police need before the lights come on, what the roadside can and cannot require of you, and how to tell afterwards.

    The 24 driving cues

    “What can be done about it?”

    Every Texas DWI defense by category, from the stop through the elements the State still has to prove.

    Every defense, by type

    “What happens next, and when?”

    Every stage of a Texas DWI case, from filing through disposition, and what happens at each.

    Walk through a case

    “How does my case end?”

    Dismissal, acquittal, reduction, deferred, probation, or jail, and which endings let you clear your record.

    See how cases end

    “What does this do to my life?”

    What a DWI touches beyond the courtroom: your job, insurance, immigration status, and license.

    What a conviction costs

    “Who should I hire, and what will it cost?”

    What to ask, which credentials matter in a DWI case, what fees should cover, and the red flags.

    Credentials and fees

    Not sure what a term means? Check the glossary.

    Not a DWI Case?

    The Rest of What We Defend

    DWI is the majority of our work, not all of it. The same attorneys handle these charges across the same courthouses.

    Dallas County

    Dallas DWI Questions, Answered

    Which court will my Dallas DWI case be in?

    Dallas County DWI cases are heard at the Frank Crowley Courts Building. A first or second DWI is a misdemeanor and goes to one of the County Criminal Courts on the 3rd or 4th floor. A felony DWI, intoxication assault, or intoxication manslaughter goes to a Criminal District Court in the same building. Our Dallas County court guide covers the whole building.

    Does Dallas County offer DWI diversion?

    Dallas County does not run a pretrial diversion program for DWI; its DIVERT program is a drug-court track. That does not make a conviction inevitable. A first DWI can still be eligible for deferred adjudication under Texas law, and beyond that the defense itself is what drives the outcome here: challenging the stop, the testing, and the lab work. Start with our guide to the most common DWI defenses in Texas.

    They took my blood in Dallas. Is my case over?

    No. Dallas blood is tested at the county SWIFS lab, and lab results are only as good as the chromatography, calibration, and handling behind them. We request that underlying data in every blood case and review it at the chemistry level. Blood cases get challenged and won. Our guide to the evidence in a Texas DWI case explains what we look for.

    How long do I have to save my license after a Dallas DWI?

    Fifteen days, counted from the day you receive your notice of suspension rather than automatically from the arrest. If an officer handed you a DIC-25 form, that is the day the clock started. If your case involved a blood draw, DPS usually mails the notice after the lab reports, which can be weeks later, and the law treats it as received five days after mailing. Miss the window and the suspension takes effect on its own. If you are not sure where you stand, call and we will work it out with you, and if the deadline has already passed an occupational license is usually the next step. Our guide to the 15-day deadline walks through the request.

    Do I need a Dallas DWI attorney, or will any criminal lawyer do?

    Any licensed lawyer can take the case. The question is whether they can read a SWIFS chromatogram, cross-examine on field sobriety protocol, and know how each Frank Crowley court runs. DWI is a science case wearing a criminal charge. Our guide to choosing a DWI lawyer covers what actually matters.

    Can a first DWI end without a conviction?

    It can. Since September 1, 2019, Texas law lets a judge grant deferred adjudication on a first DWI when your alcohol concentration was under 0.15, you have no prior conviction under the intoxication statutes, and you did not hold a commercial license at the time. An ignition interlock is a required condition, and the decision is the judge's, not automatic. Deferred is not a dismissal, but the case ends without a final conviction. It is not available where a child was in the car, or on intoxication assault or intoxication manslaughter. Our guide to deferred adjudication covers who qualifies and what it does to your record.

    What does a DWI lawyer in Dallas cost?

    It varies with the charge level and whether the case is headed to trial, and we are direct about numbers at the first call. The consultation itself is free, we offer payment plans, and our fee guide explains what a DWI defense should and should not cost.

    Where were you arrested? We also serve the suburbs.

    Garland, Irving, Mesquite, Grand Prairie, and every other Dallas County city all prosecute at Frank Crowley. Wherever the stop happened, we defend it. See our Dallas County guide for how a case moves through the building.

    Your Defense Starts Now

    Charged with DWI in Dallas?

    The ALR deadline, the video evidence, and the early decisions all land in the first two weeks. Free, confidential case review. An attorney answers, 24/7.

    Our Dallas Office
    3300 Oak Lawn Avenue, Suite 700
    Dallas, TX 75219
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