Free Consultation713.864.9000

DEDICATED, AGGRESSIVE HOUSTON DWI LAWYERS

Mark Thiessen

The only DWI Attorney Selected

Texas Board of Legal Specialization in Criminal Law
DUI Defense Lawyers Association Board Certified
National College for DUI Defense Board Certified
Super Lawyers 2013-2020
Super Lawyers Top 100 in Houston & Texas
Lawyer Scientist
Avvo Rating
AV Preeminent
TCDLA
Harris County Criminal Lawyers Association
National Trail Lawyer
Super Lawyers Rising Star 2010-2013

Notable Houston DWI Victories

probation

DWI 2nd / Texas v. W.X.

Harris County No. 12

9/1/21

.176 BREATH!!! Client was a 14 year veteran pulled over by a very confident officer while doing 92/65 on the Hardy Tollway. Client’s family was also members of Pct 1 and client showed his buddy badge to the officer. The officer didn’t take kindly to that and started the DWI investigation thinking my client was trying to “get out of something.” Not to self: the officer said he gives people no slack for 100 club stickers or other police agencies. Saturday night, just before midnight and the client admitted to drinking a beer for his migraine. He suffers migraines from being blow up in Iraq and sustaining a TBI. The office gave the client no credit for any of his injuries and arrested the client. The officer said that the client smelled like he had more than one beer. That worried the client and you could see him put a piece of gum in his mouth while waiting for the breath test. More than that the client wore a bite guard for his TBI and migraines and the officer never saw it or even asked him to take it out. Instead, the client tried to prove his innocence and take the breath test bit didn’t know how mouth alcohol would affect the machine. The first test was invalid and a .21. Their own expert said it was probably mouth alcohol. The second test came back .176/.174 and the officer was happy. The client told me about his retainer since day 1. I tried to get him into Veteran’s court to get a dismissal, but the DAs refused. On the eve of trial they said they would give him a program that would result in dismissal. But it had been over 18 months at that point and we weren’t cutting deals. The DAs office tried a nice case, but honestly, had no idea about the retainer and didn’t watch the video close enough to catch the gum. I told the jury in closing that when we saw that on video, or after the client testified, he pulled out his retainer… the State should’ve dismissed the case. However, I think they were using it as a training exercise for their young DAs. My client’s wife was in court every day standing behind her husband, he works in the plants, and they have a 14 year old daughter. His life and future is not a training exercise. Thank the good Lord that the jury held true to their doubts and returned a quick 6 minute Not Guilty verdict. Thank you to those jurors for standing strong and give this man, soldier, and family their future back.

See More DWI Victories
Mark Thiessen

MarkThiessen

Houston DWI Lawyer, Criminal & Civil Trial Defense Attorney

“I’m a Board Certified, trial-tested Super Lawyer focused on fighting for my client's freedom. If you hire our Houston DWI Law firm, we're available 24/7, because, at the end of the day, we work for you. As one of only three attorneys in all of Texas to be Board Certified in DWI Defense by NCDD and in Criminal Law by Texas Board of Legal Specialization, my clients can count on specialized, expert representation that most firms simply can’t deliver.”

What to expect?

Thiessen Law Firm. Well-known for both award winning Houston DWI Lawyers and aggressive trial-tested criminal defense techniques, we fight like no other, for your DWI case. Our trial attorneys not only fight for positive results, we also care deeply about the overall well-being of our clients.

Why Choose Thiessen Law Firm?

  • Proven Houston DWI Lawyer
  • Aggressive Criminal Defense Attorney
  • Board Certified in Criminal Law by Texas Board of Legal Specialization
  • Board Certified in DWI Defense Law by NCDD
  • ACS/CHAL Lawyer Scientist
  • The ONLY DWI lawyer to be selected to Top 100 Super Lawyers in Texas (2019 & 2021) and Houston (2017-2021)
  • Free DWI & Criminal Case Evaluation
  • No Hourly Rates
  • 24/7 Accessibility
Continue Reading

Houston DWI & trial lawyers that fight for you in Houston and all Texas counties

Our Houston DWI Attorneys always fight our hardest. We tell the truth about your DWI or DUI case, and facts take precedence over promises. We hold honesty and virtue in highest regard and it is the foundation of ensuring your DWI or criminal defense case ends with a satisfying, positive outcome.

When you get a Houston DWI, DUI or other criminal charge in Harris County, your life is changed, no matter the verdict. At Thiessen Law Firm, you will be represented by a Houston DWI lawyer who will ensure you’re able to continue on with the life you want. You’ll never feel forced into taking a deal that you don’t want, or accepting terms you don’t fully understand. Mark Thiessen isn’t just a top Houston DWI lawyer. He’s also recognized as an ACS CHAL Lawyer-Scientist for his efforts to understand the science and technology behind DWI testing. This investment in his education and training provides clients with the knowledge needed to fight for their rights effectively and fairly.

Back

112

Not Guilty Verdicts

100%

Client Satisfaction

118

Speaking Events

38

Awards

31

Publications

Latest DWI & Criminal Defense News

Mark Thiessen

November 17, 2021 . 5 min read

Mark Thiessen

November 13, 2021 . 6 min read

Mark Thiessen

November 9, 2021 . 7 min read

People Are Reading

Charged with a Houston DWI?

You have 15 days to save your driver's license

Act fast if you've been charged with a Houston DWI or DUI in Texas. Here’s something you might not see from other Houston DWI Lawyer websites: If you've been arrested for a DWI or DUI in the state of Texas, you are facing two cases against you. The first one is the criminal case by the state of Texas, and the other is by the Texas Department of Public Safety to suspend your license.

Stop License Suspension

In The Media

In The Media
www.lubbockonline.com

Jurors find woman not guilty of intoxication manslaughter in fatal West Lubbock crash

The defense attorney for a 23-year-old woman said a flawed Lubbock police crash investigation provided enough reasonable doubt for a 12-member jury to find his client not guilty in a fatal 2014 West Lubbock wreck.

Read the full story

Speaking Engagements

As Houston’s DWI Super Lawyer, Mark Thiessen has consistently set high standards in his field since establishing his firm. His scientific investigation process & comprehensive list of victories has brought him to the forefront of national recognition as he is sought by industry leaders & legal organizations to deliver trial strategy seminars.

Austin, TX

TCDLA Lonestar DWI

Understanding and Beating the Intoxilyzer 9000

Register Now
Lubbock, TX

Texas Tech University – Criminal Law Class

Trial Tactics from the Trenches

Austin, TX

State Bar of Texas – Firearms Law

Trial Strategy and Cross Exam of Arresting Officer

Happy Clients

The BEST Attorney in Harris County and Probably One of the Best in the Nation

Mark Thiessen is by far the BEST attorney in Harris County and probably one of the best in the nation. His firm is extremely polite and professional. Mark and his staff were always there for me when I had questions or concerns. He was able to get my DWI dismissed in Harris County which is a huge relief. I would highly recommend Mark for any DWI or drug related case.

Martin

DWI client

It was the best decision I could have made

I'm a lawyer. I made a mistake one night and was arrested for suspicion of DWI. As a lawyer, it's extremely difficult to trust your case to another lawyer. It's ingrained in your bones to want to be in control, but you can't because no matter what you've read on the internet or seen on TV, you don't know that area of law, or the criminal judges, or the prosecutors, and the reality is all of that really matters. You have to find an attorney you can trust to protect your interests. Mark was the first and only lawyer I called to handle my DWI case, and it was the best decision I could have made. He and his team exceeded all of my expectations in getting both my ALR and DWI dismissed. I went to him because of his reputation among lawyers at being the best at what he does, and I wasn't disap...

If You Want a GREAT Lawyer, Mark Thiessen is Your Man

I found Mark Thiessen through several of my friends. I was having serious issues with the lawyer I had at the time. He kept telling me I was going to jail when I had done nothing. He did not believe me, and I believe he was gonna have me put in jail and not fight for my innocence. From the moment I met Mark Thiessen, I knew he was going to do everything for me to keep me from that horrid jail. I was not allowed to leave my county. He drove all the way up to The Woodlands to meet me at Starbucks to speak on my case. He got all the charges against me dropped within minutes. He's truly the best lawyer. He has a lot of respect from his piers including the judge that actually told me I was very lucky to have such a great lawyer. And trust me, I know I was lucky to have found him, and that is...

Michelle

DWI Client

One of the best criminal attorneys in Houston

Excellent. Mark is, without a doubt, not only one of the best criminal attorneys in Houston, but in this part of the country.

His knowledge of the legal system was astounding

After being arrested for a first time DWI, I felt scared, lost, and worst of all alone. I quickly started asking around and reading reviews. Time and time again the name Mark Thiessen was the main constant to every conversation or search. He, himself, called me back in less than 24-hours, set up a consultation the next day, answered all my outrageous questions patiently, and proceeded to give me an overview of how the process would play out. His knowledge of the legal system was astounding. Everyone knows DWI’s will come with a price tag as well. But I felt the price and payment plan were very reasonable, especially when your talking about your own future. You get what you pay for and WOW! I got that and even more through the process. Some people’s minds work systematically, if A happen...

Mark Thiessen is a Jedi Master of his craft

"Mark Thiessen is a Jedi Master of his craft. Mark and his team have a keen and tactical approach to handling your case, yet still manage to maintain a lot of empathy in their communication with you. A rare combination indeed. They definitely made this process of navigating the court system as smooth as it could possible be. Things such as answering my texts late at night even on the weekends, and being there in person at the office for meetings were quite clutch. I am more than glad I went with Mark and his firm when I was a lost pup browsing the endless aisles of law firms showing up via google, ads, family recommendations, etc. Cheers to the Thiessen Law Firm."

Excellent Attorney to Have Represent You

Because of the seriousness of my case (serious for me), I had been researching and meeting with many different lawyers in the area. I felt like my life was unfairly ruined; I even considered pleading guilty just because it seemed the odds were against me. What made me choose Mark was not only his positive reviews and great record, but when I first met him he was confident, honest, straightforward and very knowledgeable. He definitely knows what he's doing and will fight for you. Mark will not fudge or sugarcoat the situation to you. While some people may take it as not caring, it is exactly was is needed in this type of environment. I appreciated that he was very honest and gave all the details to keep me informed throughout the entire ordeal. I ended up getting both Mark and Jed Sil...

I recommend Mark Thiessen

Bonjour. Je tiens à apporter ici le témoignage de mon entière satisfaction concernant l’action menée par Maitre Thiessen au cour de l’instruction préalable à mon procès devant la cour criminelle du comté de Harrys. Je me suis fait arrêté par la police et contrôlé positif à l’éthylomètre au volant. Ceci est considéré comme un crime au Texas. Après avoir passé deux jours en prison j’ai été relâché sous caution et j’ai pris contact avec Maitre Thiessen sur les conseils d’un collègue de travail. Maitre Thiessen était connu de mon collègue après une conférence qu’il avait faite au sein de l’entreprise afin d’exposer et d’expliquer les lois en vigueur au Texas auprès des expatriés. (je n’étais malheureusement pas présent le jour de cette conférence !) Pendant toute l’instruction, Mai...

My case is now dismissed and I can finally put this all behind me.

I am a professional business leader part of a Fortune 1,000 company. A year and a half ago my mother has just diagnosed with stage four ovarian cancer. At 8 pm on a Thursday night my stepdad called and told me that she had been rushed to the medical center. I made a terrible decision!! To get in my car to be there for my mother. I was pulled over and charged with Driving while intoxication. Never being faced with anything like this, I did not where to turn for help. I called a friend that had gone through something very similar in the past and she without hesitation told me to call Mark, she gave me his cell phone number and within 24 hours I was sitting in his office. He was very honest and sympathetic to my situation. He took my case and we went through the process. He always t...

If Mark can’t get you a win, nobody can

Simply put, Mark Thiessen is a criminal defense all-star. If he can’t get you a win, nobody can. I’ve worked with Mark and his team on two very different cases, and both times I’ve been blown away by the level of honesty, strategy, and respect that Thiessen Law Firm brings to the table. You can feel the difference the second you step in the courtroom with Mark by your side. The time he has taken to build relationships and earn respect is clear. He knows how to push the envelope while still being respectful of the system when it matters. Best of all, he knows where the “win” is, even when “not guilty” isn’t possible. He won’t send you to trial when he knows it won’t work, and he won’t just roll over and charge you for the same lame deal everyone gets. Mark and his team carefully look at ...

They turned what seemed like an impossible case into something with an unexpectedly amazing outcome

The Thiessen Law Firm is a top firm with excellent attorneys. They work with criminal law, personal injury law, and family law. They are ranked one of the top law firms in Houston for a reason. Mark Thiessen is a very knowledgeable, honest, and trustworthy attorney. He and his associates work very hard, and are readily available anytime you need them. They fight for their clients yet maintain a polite and respectable manner in the courtroom. For me, they turned what seemed like an impossible case into something with an unexpectedly amazing outcome. I would highly recommend Mark Thiessen and the Thiessen Law Firm to anyone who is looking for trusted and diligent legal representation

Amazing, Reliable and Superb Attorney! The Great Mark Deserves 100% Marks

Mark achieved everything that I thought wasn't possible. He overcame every obstacle that the DA threw at him, approached the case with confidence, and ultimately claimed a victory for me. I am incredibly grateful for Mark Thiessen.

Choosing a Houston DWI Lawyer

If you or a loved one are fighting a Houston DWI, it may be tempting to search for cheap DWI lawyers in Houston, TX. Don’t gamble with your freedom and reputation, even a DWI in Texas, first offense can be life-altering.

In fact, every DWI and criminal offense is serious: DPS surcharges, intoxication manslaughter, a BWI in Houston. Look beyond a DWI lawyer in Houston and their cost, you need a Houston DWI attorney who wins.

For example, many websites may claim to be the best DWI lawyer in Texas. But how many of those DWI attorneys have beat a quadruple intoxication manslaughter charge? Thiessen Law Firm has.

In fact, our Houston DWI lawyers have beaten intoxication manslaughter charges, DWI blood tests, DWI breath tests, and have even seen successful outcomes where a client admitted to being drunk on video. In addition to being a Super Lawyer, Mark Thiessen is one of only three attorneys in the state of Texas to be Board Certified in DWI Defense by the NCDD and in Criminal Law by Texas Board of Legal Specialization, and is the only lawyer of those three to also be certified as an ACS/CHAL Lawyer-Scientist. Mark is also rated a is a 10.0 Superb Avvo-rated lawyer with 100% client satisfaction.

Don’t worry about finding a “DWI lawyer near me”, Thiessen Law Firm fights DWI in Texas, all across the state. Need a DWI Lawyer in Galveston County? The team of Houston DWI attorneys at Thiessen are ready to fight for you.

Get the winning Houston DWI team on your side, request a free consultation below.

Free DWI & Criminal Case Consultation

Call 713.864.9000 or fill out the form below for a free consultation.

aggressive defense