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HOUSTON DWI LAWYERS OBSESSED WITH WINNING

Mark Thiessen

The only DWI Attorney Selected To:

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 10/10 Rating
Avvo Clients' Choice Award
Board Certified Advocate in Criminal Trial Law by the NBTA Foundation
AV Preeminent
TCDLA
Harris County Criminal Lawyers Association
National Trail Lawyer
Super Lawyers Rising Star 2010-2013

Notable Houston DWI Victories

not guilty

Intoxicated Manslaughter / State v. W.C.

Galveston County 56th District

06/03/22

It was the night before Thanksgiving and our client was driving home just before midnight from a “Friendsgiving.”  Little did he know that he would meet R.S. who was also celebrating that night.  She was in the Waffle House intoxicated with her husband.  She was so intoxicated that she dropped their baby on the table while her husband was in the bathroom.  The cause the waitress to grab and protect the now screaming baby.  The husband came out and the couple got in a fight.  R.S. stumbled out of the Waffle House, alone, and began walking along the side of a highway.  Her husband thought she was just going to the car.  When she wasn’t there he went to look for her.  At the bridge, there was no sidewalk, but there was a shoulder just as wide as a sidewalk.  R.S. was 4x the legal limit and walking with her back to traffic in the middle of the lane of traffic on a dark unlit bridge.  RS was wearing all black.  Our client never even saw her.  The accident reconstructionist educated the jury on reaction times are delayed at night and also when you are not expecting to see that in the road.  The League City police department tried to make their own recreation by 2 officers driving in the same make of car and one yelling when he could see the person and the other would see where they were compared to buildings on the side of the street.  And then measure the distance.  This was a highly flawed test not just because of the errors in transmitting voice to ear to sight for distance measurement, but also because they knew and were expecting to see someone in the middle of the road.  Out clients front wind shield was shattered but there was no blood, or anything that looked like he hit a person.  There was a yellow deer crossing sign right at the bridge too.  Our client panicked a bit and called his fiancé.  It took him 4 minutes but he stopped on his own.  However, he did not realize an off duty officer was close by and saw the hit and followed and blocked him in.  The client testified he was scared and pulled over and was going back.  The jury took a long time in deliberations and rightfully found our client Not Guilty of Intoxicated Manslaughter.  They said any alleged intoxication on his part was not the cause of this poor girls death.  Unfortunately, she was 4x the legal limit and walking in the middle of a highway.  This accident was unavoidable and she put herself in that deadly position.  The Jury then convicted our client of failing to return to the scene where he should have known that a death may have occurred.  He was convicted of Failing to Stop and Render Aid.  While I trust my client was going back, and there is no definition on how far you are allowed to go before you stop and return, I understand and respect that juries verdict.  They can all sleep well knowing they followed the law on a very tough and tragic case.  It was a very emotional case on both sides.  Thank you to that jury for standing true to your doubts and following the law in this case.

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Mark Thiessen

Mark Thiessen

Houston DWI Lawyer, Criminal & Civil Trial Defense Attorney

“I’m a 4x 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 & 2022) and Houston (2017-2022)
  • Free DWI & Criminal Case Evaluation
  • No Hourly Rates
  • 24/7 Accessibility
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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

118

Not Guilty Verdicts

100%

Client Satisfaction

125

Speaking Events

38

Awards

31

Publications

Latest DWI & Criminal Defense News

Mark Thiessen

April 18, 2023 . 6 min read

Mark Thiessen

April 11, 2023 . 5 min read

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Mark Thiessen

Mark Thiessen

Houston DWI Lawyer, Criminal Defense & Civil Trial Attorney

Taly Thiessen

Taly Thiessen

Houston Family Lawyer, Criminal Defense & Civil Trial Attorney

Kacie Penman

Kacie Penman

Houston Criminal Defense Lawyer & Houston DWI Attorney

Andrew Gendi

Andrew Gendi

Houston Criminal Defense Lawyer & Houston DWI Attorney

Charles Van Orden

Charles Van Orden

Family Law Attorney
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Brad Runcie

Brad Runcie

Criminal Trial Attorney
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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.

Houston, TX

TCDLA 30th Annual Top Gun

Beating Blood and Breath Through the Officer

San Francisco, CA

California Defense Lawyers Assoc.; 2022 Annual Kuwatch Conference

Top 10 DWI Trial Tactics

Houston, TX

Harris County Institute of Forensic Sciences (HCIFS); 2022 Topics in Forensic Science (TIFS) Conference

Defense Perspectives in DUI/D Litigation

Happy Clients

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."

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...

Mark Thiessen Has The “IT” Factor

Often times we hear about how Michael Jordan or Tom Brady just have/had that "IT" factor. In the sporting world the "IT" factor will win you games and championships. In the work world the "IT" factor will earn you praise, money, pretty girls/or guys if that’s your preference and MONEY..... When it comes to the LAW and the "IT" factor; it can mean your freedom or justice. We often take our freedoms for granted and find ourselves on the other side of the law. In that case we have to rely on a lawyer to defend our rights when we or someone else violates our freedoms. In my case, my freedom was violated when an intoxicated group of people decided to gang up on me at a house party in what I would consider a nice part of Houston. Never would I have thought that I would have to defend my freed...

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...

Mark Thiessen is a criminal defense all-star. If he 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 ...

In one word – Fantastic

I am in my late forties and was in a bit of legal trouble for the first time in my life. It is a very stressful time for somebody who is going thru this first time. First the arrest then going through the booking process and finally spending 8-9 hours waiting to be released. Once I got out I started my research on what to do to minimize the impact. My charge was failure to ID to a police officer (a class B misdemeanor - lets just say I was in the wrong place at the wrong time and when an officer showed up i panicked and did not want to give my ID in front of people who were being questioned for possession of drugs. Anyway i got a few references of lawyers and started going and meeting the lawyers and also doing internet research on them as well as on my pending charge. Since this wa...

I knew within 10 seconds after meeting Mark that he was going to be the attorney representing me in my case.

If you do not hire Mark Thiessen to represent you in your DWI case, then you will be making a huge mistake that could personally and professionally follow you around for the rest of your life. I aggressively shopped law firms online and interviewed numerous attorneys before I met with Mark. I knew within 10 seconds after meeting Mark that he was going to be the attorney representing me in my case. Mark is a very knowledgeable, tough, no nonsense kind of guy. I cannot begin to tell you how important this is because the legal process is a tough roller coaster ride that will beat you down. Knowing that Mark was watching my back thru the process was a huge help beyond any description. Even with Mark leading the charge, I honestly thought my chances of receiving anything less than a fu...

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

Fantastic Lawyer

I would HIGHLY recommend hiring Mark Thiessen as your attorney for any criminal case that you have received in the Harris County area. He is extremely knowledgeable of the court system and what actions can be taken pre-trial in order to have the best outcome at your court date. I was put on probation for a DWI a year previous to hiring Mark as my attorney. I failed to complete the requirements in order to get off of probation. My probation was revoked and sent back to the courts. That's when I hired Mark. He told me to go complete the rest of the requirements for probation and get myself a court date. When we got to court he persuaded the judge not only to dismiss my probation, but dismiss it successfully. In court he made small talk with the judge and prosecutor which told me that he k...

Preston

DWI Client

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

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...

Mark eres mi hombre que luchó por mi libertad y justicia!!!

La desafortunada noche que por causa de un accidente automobilistico, fue detenida, evaluada por un oficial de la policia y luego arrestada bajo cargos erroneos de Manejo en Estado de Ebriedad (DWI) o bajo la influencia de alcohol, fue la peor noche de mi vida. Al haberte resistido a tomar la prueba de respiratoria evidencial en un fin de semana el cual era digtado como "Sin Derecho a Refutir" dicha prueba, determinó el derecho del estado a una prueba de sangre al ser encarserada. Estos resultados de sangre fueron sumamente altos al ser recibidos, lo cual significaron el problema mas transcendente de mi vida, afectando mi carrera profesional al punto de descenso absoluto, y descalificame como aplicante para recibir mi ciudadania Americana, la cual ya era factible por mi tiempo siendo...

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.

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