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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

not guilty

Violation of a Protective Order / Texas v. R.P.

Harris County No. 14

12/6/21

The is a case about a Dad just wanting to see his kids and the ex-wife trying to use our criminal courts to further her family law case. Client and his ex-wife got divorced in 2018 and they had 2 small girls. They got divorced without attorneys. After they were divorced she file a Restraining Order against him. Client didn’t show up and she was granted a Protective Order based only on her story and no investigation by a family court judge. Client got notice of the Protective Order and ex-wife’s protected home address and place of work. Never had any violations. She had never even called the police on him ever. She took advantage of the fact that he didn’t have a lawyer. Well time passes and she moves herself and the girls in with a boyfriend and his son. While mom is stuck at work, she allows the boy friend to pick up the girls from day care and spend time with them. Dad asks if he can just be the one to spend time with them since he is free from work. Ex hangs up on him. So he drives to the boyfriends house to talk to the boyfriend and plead with him to let him be a father and just spend as much time as he can with the kids. Mom comes home while the guys are talking and yells and client and calls the police. Client had been there before and it was not a protected address. However, about a month before this the Ex changed her protected address to the boyfriends address. She never told my client either in text, email or person. And the State has zero evidence that the District Clerk followed the law and mailed him notice of the change of address. If fact the police couldn’t find it in their computer system either. The police only saw the actual piece of paper that she filed when she handed it to him. The Ex admitted on the stand she never told Client that the address had been changed and that it was the first time the day he came over that she told him. In fact, multiple times she is on video saying that the client doesn’t know she changed the address. Judge did the right thing and granted a Motion for Directed verdict when the State rested their case. Why was this case even tried? This was nothing but overzealous prosecution by the DAs office. Client had no criminal history and there was no violence involved. The DAs refused to grant him PTI (a type of probation he could expunged once completed) and only offered deferred adjudication (which affects parental rights). The jurors were all very strongly for Not Guilty anyways, but Judge instructed them to find the client Not Guilty since there was zero proof the client had any knowledge of the newly changed address. The DAs said the chief wanted to dismiss it the Friday before trial but they thought they could make it. That is a pure violation of their oath as a DA and the Rules of Professional Conduct. For the first time in my entire career I had to make an official complaint after this verdict because of the way the DAs handled this case. It’s either an unwritten blanket policy or vindictive prosecution; both of which should never be allowed. Thanks to God for bringing it all together and the Judge and the Jury for doing the right thing.

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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
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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.

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114

Not Guilty Verdicts

100%

Client Satisfaction

119

Speaking Events

38

Awards

31

Publications

Latest DWI & Criminal Defense News

Mark Thiessen

January 13, 2022 . 6 min read

Mark Thiessen

January 6, 2022 . 5 min read

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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

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

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...

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

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...

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.

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 ...

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.

You Cannot Compare Anybody with Mr.Mark!

I was accused by my own wife. It was a painful incident happened in my life. She said to the police that I was threatening to kill her and beaten her. She did this to be because she was looking for lot of money from me and I couldn’t give her the money. She was so bad that she even made proofs with the doctors. There was witness from Doctors and nurses and even some voice recordings. She allowed the doctors and nurses even to record our loud conversions. There were lot of accuses on me and the case was very strong. But in front of Mark nothing can stand. I had just two resets and the time. The first one was just a day adjustment and the next one was just 2 weeks. On the second reset, I went to the court and heard shocking news. My wife again called the court and said that I was threa...

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

I couldn’t have gone with a better law firm

I have to start off by saying how thankful I am that my case was dismissed. I never thought I would need a criminal lawyer but life happens. Mark kept me informed during the entire process. My case was rescheduled a few times, which was incredibly frustrating, but Mark kept calm. He had a game plan from start to finish. I couldn't have gone with a better law firm.

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...

Thank you, Mark, for saving my career

"I’m in medical sales, so when I was wrongly accused and my career was on the line, I called the best: Mark Thiessen. Mark came highly referred to me from my friends. After reading his reviews on line and meeting him in his office, I knew I could trust Mark to fight for me. Every time he walks in the court the DAs, Judge and staff all greet him. I was honestly proud that was my lawyer when he came in. I had a very complex case with some tough issues, but Mark didn’t give up. He told me: if they want to label you a criminal and cost you your career, they can find you guilty over my dead body. We set it for trial and Mark showed up very ready. The State actually dismissed my case before trial. I was so excited but, I kind of wanted to see Mark in trial. The guy is a...

The Best Lawyer in the Industry

I chose Mark Thiessen to represent me in a DUI / DWI case and it was the best selection/decision that I could have made. I found out about Mark through Internet search and reached out to him and his office. Upon meeting with Mark - I immediately knew that he was the right lawyer/attorney to represent me and give me the best opportunity to win my case. Mark is an expert attorney with a work ethic that is second to none. He is always available. He is a master of his craft and will give you the best opportunity to win your case. He will be prepared and he will do everything to ensure your case is won. He will actually be more knowledgable on the aspects of law, facts of the case, than the individuals that have accused you of your offense. He was highly successful in my case, even despite s...

Douglas

DWI Client

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