Frisco DWI Defense

Frisco DWI Lawyer

Science-driven DWI defense for Frisco arrests on either side of the county line: Collin County cases in McKinney, Denton County cases in Denton, handled from our Allen and Denton offices.

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

At no cost · Answered 24/7 · You have 15 days from the notice of suspension to request your ALR hearing

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    No cost. No obligation. Confidential.

    Recognized by Deandra Grant – Texas Super Lawyers 2026 Deandra Grant – Best Lawyers in America 2027 Deandra Grant – Justia 10.0 Lawyer Rating The National Trial Lawyers Top 100 Deandra Grant – D Magazine Best Lawyers in Dallas 2026 Avvo 10.0 Superb – Top Attorney Criminal Defense DUI Defense Lawyers Association Badass Award Martindale-Hubbell AV Preeminent
    Case Results

    Recent Collin County DWI Results

    Every case gets forensic-level attention. These are recent outcomes for people facing DWI charges in Collin County.

    Meet our trial team
    The Deandra Grant Law trial team, six Texas DWI and criminal defense attorneys
    DismissedJul 2026
    Charge

    DWI

    Collin County Trial Setting
    ReducedMar 2026
    Charge

    Intoxication Manslaughter

    Collin County Pre-Trial
    DismissedJul 2025
    Charge

    DWI

    Collin County Pre-Trial
    Not GuiltyJun 2025
    Charge

    DWI

    Collin County Trial
    Not GuiltyDec 2024
    Charge

    DWI

    Collin County Trial
    Not GuiltySep 2024
    Charge

    DWI

    Collin County Trial
    DismissedAug 2024
    Charge

    DWI

    Collin County Pre-Trial
    DismissedMay 2024
    Charge

    DWI

    Collin County Pre-Trial
    Not GuiltyJan 2024
    Charge

    DWI

    Collin County Trial

    Past results do not guarantee a similar outcome. Every case is fact-specific. Client names and identifying details have been omitted for privacy.

    DWI Defense in Frisco

    Facing a DWI in Frisco?

    Deandra Grant Law defends people charged with DWI in Frisco, from a first offense to high-BAC, repeat, and felony charges, including DWI with a child passenger, intoxication assault, and drugged driving. Frisco is the one city in our North Texas markets where the first question is not what the charge is but which county has it. Part of the city sits in Collin County and part in Denton County, and the county of the arrest, not your address, decides the prosecutor, the courthouse, and the programs available to you.

    That is why Frisco cases are covered from two offices. Our Allen office is fifteen minutes down US-75 from the Collin County courts in McKinney, and our Denton office sits directly across McKinney Street from the Denton County Courts Building. A firm that appears in only one of those courthouses has to hand off half of Frisco. We work both every week. The team is led by managing partner Deandra Grant, a former prosecutor with more than 30 years of trial experience who wrote The Texas DWI Manual, and partner Douglas Huff, an ACS-CHAL Forensic Lawyer-Scientist. When the State’s case rests on a breath number or a blood draw, we go to the underlying science.

    Getting started costs nothing. Call or schedule online to talk through what happened. The license clock does not wait while you work out which county has your case: you have 15 days from the notice of suspension to request an ALR hearing.

    15-Day Deadline

    Arrested in the last 15 days?

    Your license is on its own clock. It starts when you receive the notice of suspension, which in a blood case often arrives by mail weeks later.

    What We Defend

    Frisco DWI Charges We Handle

    Every Frisco DWI charge, from a first offense to intoxication manslaughter, in either county.

    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, BAC 0.15+

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

    Why 0.15 matters

    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

    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 Frisco

    Frisco runs on two counties' rules. These are the local specifics that shape a defense here.

    Which county has your case

    Frisco straddles the Collin and Denton county line, and the county of the arrest decides everything downstream. Your bond paperwork and notice of suspension name the county and the court. Do not guess from your address; the arrest location governs.

    Where your case is heard

    Collin County side: the Russell A. Steindam Courts Building at 2100 Bloomdale Road in McKinney, misdemeanors in the County Courts at Law and felonies in the District Courts. Denton County side: the Denton County Courts Building at 1450 E. McKinney Street in Denton, with the same misdemeanor and felony split.

    Who prosecutes

    A Frisco PD arrest is charged by the Collin County District Attorney or the Denton County District Attorney, depending on the side of the line. Collin has a stated policy against reducing a DWI to obstruction of a highway, which pushes those cases toward the evidence. Denton prosecutes through a dedicated DWI Unit.

    Where your blood goes

    Both counties send DWI blood to the DPS crime lab in Garland, and both run no-refusal periods when a refusal can turn into a warrant and a blood draw the same night. The lab's chromatography, calibration, and quality control records are discoverable, and we request them in every blood case.

    Diversion depends on the county

    Collin County runs the Burden to Blessing program and a Veterans Court. Denton County runs a DWI Treatment Court and a Veterans Court. They are different programs with narrow eligibility, so a strategy built around one has to be built around the right one.

    Visit the Allen Office Explore the Collin County Court Guide
    Why Deandra Grant Law

    Why Collin County Clients Choose This Firm

    What decides a DWI case is how well your lawyer understands the evidence.

    Former Prosecutor
    Deandra Grant prosecuted DWI cases as an 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
    A Collin County blood case rests on lab work. We request the chromatograms, calibration records, and QC data behind the number, and we challenge them at the chemistry level.
    After You Hire Us

    What We 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 is destroyed.
    • Pull the full discovery file: offense report, calibration and maintenance logs, lab records, certifications.
    • Read the underlying chemistry ourselves: the chromatograms and 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 is not right. Prosecutors know which firms try cases.

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

    Reviews

    What Collin County Clients Say

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

    ★★★★★

    They are very responsive to requests and questions. Doug went above and beyond to fight for me and get the best possible deal I could in Collin County. I even had questions during probation and they were quick to answer and help (which they didn't have to do).

    JA
    Jordyn Adams
    Jun 2022
    ★★★★★

    My son was facing possible prison prison time, I was afraid. But by the Grace of God I found Deandra Law Firm where Doug and Jada both worked awesome deals for my son in both counties he was facing..no prison. Thank you for being team Vick for us

    KV
    Karen Vick
    Mar 2026
    ★★★★★

    Deandra Grant Law is top-notch! I was provided with great resources from day one. Elena was also super helpful and patient! They're the perfect team to guide you through a tough time.

    SG
    Stephanie Gonzales
    Feb 2026
    Read All Reviews on Google
    Attorneys

    Frisco DWI Attorneys in the McKinney and Denton Courts

    Forensic-science training, three decades in the Collin and Denton County courts, and the courtroom record to back it up.

    All Attorneys
    Press

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    Across the County Line

    Serving Frisco and Its Neighbors

    We defend DWI cases across Frisco and the cities around it: Plano, McKinney, Allen, Little Elm, The Colony, and Prosper. Frisco arrests on the Collin County side are prosecuted in McKinney, and the Denton County side is heard in Denton. We work both courthouses every week.

    The full county walkthroughs are on Collin County DWI Lawyer and Denton DWI Lawyer, and the courthouse guides at Collin County courts and Denton County courts. Facing a non-DWI charge? See Frisco Criminal Defense Lawyer.

    The Star, Stonebriar, and the Tollway

    Frisco PD and DPS stops along the Dallas North Tollway, SH-121, and Preston Road on the eastern side of the city are Collin County cases heard in McKinney.

    The Denton County side

    West of the county line, toward Little Elm and Lake Lewisville, a Frisco arrest is prosecuted by the Denton County DWI Unit and heard at the Denton County Courts Building. Our Denton DWI lawyer page walks through that court.

    Close to the Courthouse

    Our Allen Office

    Fifteen minutes from the Collin County courts in McKinney. Frisco cases on the Denton County side are handled from our Denton office, directly across the street from the Denton County Courts Building.

    The Deandra Grant Law office in Allen
    Address
    1333 W. McDermott Drive, Suite 180
    Allen, TX 75013
    (972) 848-8828
    Consultation

    At no cost and confidential, in person, by phone, or by video.

    Office Hours
    Mon – Fri8:30 AM to 5:30 PM
    Sat – SunBy appointment
    Phone intake24 hours
    Parking

    Surface and covered parking at no cost on site at the Atrium building, with visitor spaces near the main W. McDermott Drive entrance.

    Directions to the Allen Office

    1. From Russell A. Steindam Courts Building (McKinney) 9.5 mi / 15 min

      From 2100 Bloomdale Road, take US-75 South and exit W. McDermott Drive in Allen. Turn right and continue west; the Atrium building is at 1333 W. McDermott.

    2. From US-75 / Central Expressway 1.0 mi / 3 min

      Exit W. McDermott Drive and head west toward Alma Road. The Atrium at 1333 W. McDermott is just past the Watters Road intersection.

    3. From Plano 10.5 mi / 18 min

      Take US-75 North, exit W. McDermott Drive in Allen, and turn left across the highway. Continue west to 1333 W. McDermott.

    4. From Frisco / Sam Rayburn Tollway (SH-121) 12.0 mi / 20 min

      Take SH-121 east to US-75 North, then exit W. McDermott Drive and head west.

    5. From Downtown Dallas 26.0 mi / 35 min

      Take US-75 North (Central Expressway) to Allen, exit W. McDermott Drive, and turn left across the highway.

    Also From This Office

    Court guides for the counties this office covers: Collin County, Grayson County, McKinney, Plano, Frisco.

    Start Here

    Wherever You Are in Your Case, Start Here

    A DWI case has many moving parts. Find the question you are 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 in the same courthouses.

    Frisco

    Frisco DWI Questions, Answered

    Which county will my Frisco DWI case be in?

    It depends on where the arrest happened, not where you live. Frisco straddles the Collin and Denton county line. A Collin County arrest is heard at the Russell A. Steindam Courts Building in McKinney, and a Denton County arrest is heard at the Denton County Courts Building. Your charging paperwork and your notice of suspension name the county and the court, and we can confirm it in the county's records within a day.

    What should I look for in a Frisco DWI lawyer?

    Someone who appears in both Collin County and Denton County, because you may not know yet which one has your case. Ask how they handle a blood case, since both counties send blood to the DPS lab and run no-refusal periods, and whether they know which diversion program your county actually offers.

    Does the county change how the case is defended?

    The evidence does not change, but what can be done with it does. Collin County has a stated policy against reducing a DWI to obstruction of a highway, and the two counties run different diversion programs. The prosecutor's office is different too. Start with the DWI defenses that actually work.

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

    15 days from the notice of suspension to request an ALR hearing, or the suspension is automatic. That deadline is identical on both sides of the county line, and it does not pause while you work out which courthouse has your case. Past the window, an occupational license may keep you driving.

    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.

    Is there a DWI lawyer near me in Frisco?

    Deandra Grant Law has no Frisco office. Our Allen office covers the Collin County side and our Denton office covers the Denton County side, which is the proximity that matters: both are minutes from the courthouse that will hear your case. The first consultation works by phone or video, so you can get advice the same day.

    What does a DWI lawyer in Frisco cost?

    It depends on the charge and whether the case is headed to trial, and we are direct about numbers at the first call. The consultation is free and we offer payment plans. Our fee guide explains what a DWI defense should and should not cost, and How Much Does a DWI Cost in Texas? covers the fines and fees a conviction adds.

    Is a DWI a felony in Texas?

    Usually not the first time. A first DWI is a Class B misdemeanor, or Class A if your alcohol concentration was 0.15 or higher, and a second DWI is a Class A misdemeanor. It becomes a felony with a third offense (third-degree felony, two to ten years), any DWI with a passenger under 15 (state jail felony), intoxication assault (third-degree felony), or intoxication manslaughter (second-degree felony). Our felony DWI guide covers each level.

    What is the legal alcohol limit in Texas?

    0.08 for most drivers, 0.04 for anyone holding a commercial driver license, and any detectable amount for a driver under 21. The number is not the whole story: Texas also defines intoxication as losing the normal use of your mental or physical faculties, so a driver under 0.08 can still be charged, and a 0.08 result can still be challenged on how the sample was taken and tested. See what 0.08 actually means.

    How long can my license be suspended after a Frisco DWI?

    The administrative suspension comes first. A failed breath or blood test brings 90 days for a first offense, and a refusal brings 180 days. A prior alcohol-related contact in the last ten years raises those to one year and two years. A conviction can add its own suspension of 90 days to a year. Requesting the ALR hearing within 15 days of the notice of suspension is the only way to contest the first one, and an occupational license can keep you driving in the meantime. See our license guide.

    Will I go to jail for a first DWI in Collin County?

    The statute allows it: a first-offense DWI carries 72 hours to 180 days in the county jail, and up to a year if the result was 0.15 or higher. In practice a first offense in Collin County more often ends in a dismissal, a reduction, deferred adjudication where you qualify, or probation, and the jail exposure is what the defense is built to remove. The time you already spent in the county jail after the arrest counts against any sentence.

    I was just arrested for DWI in Frisco. What should I do first?

    Call us before you do anything else, because two clocks are already running. The 15-day window to request an ALR hearing starts when you receive the notice of suspension, and your bond conditions take effect the moment you are released. Write down everything you remember about the stop while it is fresh, keep the paperwork you were handed, and do not discuss the case with anyone but your lawyer. The consultation is free.

    Your Defense Starts Now

    Charged with DWI in Frisco?

    Two counties, two courthouses, one deadline. Free, confidential case review. An attorney answers, 24/7.

    Our Allen Office
    1333 W. McDermott Drive, Suite 180
    Allen, TX 75013
    Get directions
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