Mark Thiessen

Attorney Profile

Top Rated DUI-DWI Attorney in Houston, TX

Thiessen Law Firm
 | 733 E 12th 1/2 Street, Houston, TX 77008
Phone: (713) 864-9000
Fax: 713-864-9006
Selected To Super Lawyers: 2013 - 2020
Selected To Rising Stars: 2010 - 2013
Licensed Since: 2003
Practice Areas:
  • Criminal Defense: DUI/DWI (60%),
  • Criminal Defense (40%)
Languages Spoken:
  • English,
  • Spanish
    Attorney Profile

    Recognized throughout Texas as one of the top criminal and DWI defense attorneys in the Houston area, Mark R. Thiessen prides himself on representing his clients aggressively in court and with caring outside the courtroom. With The Thiessen Law Firm, Mr. Thiessen specializes in criminal defense and DWI defense.  Mr. Thiessen has one trials from Class B Misdemeanors to First Degree Felonies.  While he handles all types of criminal cases, he mantains an emphasis in intoxicated related accidents because of his scientific knowledge and background.  

    Mr. Thiessen is Board Certified in (1) Criminal Law by the Texas Board of Legal Specialization; (2) DUI Defense Law by the National College of DUI Defense through the American Bar Association; and (3) DUI Law by DUI Defense Lawyers Association.  Mr. Thiessen has been honored with the top AV Preeminent* rating by the Martindale-Hubbell peer-review process and received a 10/10 “Superb” rating by Avvo. The American Institute of DUI/DWI Attorneys named him as one of the 10 best attorneys for the state of Texas.

    A competitor in sports and martial arts during his days off, Mr. Thiessen brings that competitive spirit to the courtroom as well. Mr. Thiessen is regular competitor as a Bown Belt in Brazilian Jiu Jitsu.  At the same time, representing clients against DWI charges can require the skills of a scientist, and so Mr. Thiessen also brings a working knowledge of the chemistry and anatomy of blood alcohol concentration tests.  Mr. Thiessen has also achieved the designation as an ACS/CHAL Lawyer- Scientist by the American Chemical Society, the highest scientific rank in the nation that a lawyer can achieve.  

    A native of Houston, Mr. Thiessen maintains deep ties to the community. A graduate of The Kinkaid School, Texas Christian University and South Texas College of Law, Mr. Thiessen practiced civil law for three years before becoming a criminal defense trial attorney. He is on the board of directors and current co-chair of the DWI Committee for the Texas Criminal Defense Lawyers Association and the President Elect and on the board of directors for the Harris County Criminal Lawyers Association. Texas Monthly/Thompson Reuters has named Mr. Thiessen as a Super Lawyer since 2013, then in the Top 100 Super Lawyers in Houston for 2017-19.  In 2019, Mr. Thiessen was the only DWI attorney to be named to the Top 100 Super Lawyers in Texas, and one of only two criminal lawyers to make that list.  

    Mr. Thiessen maintains a busy schedule of speaking engagements for educational purposes and professional development, and has been frequently published in professional publications for criminal defense attorneys.

    View Mr. Thiessen's social profiles: 
    Thiessen Law Firm Website 
    Thiessen Law Firm Blog 
    Facebook 
    Twitter
    Instagram 
    LinkedIn

    *AV Preeminent and BV Distinguished are certification marks of Reed Elsevier Properties Inc., used in accordance with the Martindale-Hubbell certification procedures, standards and policies. Martindale-Hubbell is the facilitator of a peer review rating process. Ratings reflect the confidential opinions of members of the Bar and the judiciary. Martindale-Hubbell ratings fall into two categories – legal ability and general ethical standards.

     
    Practice Areas
    • 60%Criminal Defense: DUI/DWI
    • 40%Criminal Defense
    Focus Areas

    DUI/DWI, Criminal Law

    Selections

    Selected to Super Lawyers for 8 yearsmiddle-imageSelected to Rising Stars for 4 years

    Super Lawyers: 2013 - 2020 Rising Stars: 2010 - 2013

    Email Me

    To: Mark Thiessen
    Super Lawyers: Potential Client Inquiry

    About Mark Thiessen

    Admitted: 2003, Texas

    Professional Webpage: https://www.thetexastrialattorney.com/the-firm/mark-thiessen...

    Honors/Awards:

    • Board Certified - DUI Defense, Board Certified - DUI Defense , DUI Defense Lawyers Association , 2018
    • The only DWI attorney listed, Top 100 Super Lawyers Texas, Thompson Reuters, 2019
    • The only DWI Attorney listed, Top 100 Super Lawyers Houston, Thompson Reuters, 2019
    • Thiessen Law Firm is proud to announce Attorney Mark Thiessen’s recent achievement in becoming a Board Certified lawyer in criminal defense, named by the Texas Board of Legal Specialization. This prestigious certification distinguishes only a select few attorneys as specialists in their respective fields and requires a significant amount of legal skill., Board Certified - Criminal Law, Texas Board of Legal Specialization , 2018
    • Top 100 Super Lawyers in Houston , Top 100 Super Lawyers Houston, Thomas Reuters , 2018
    • Top 100 Super Lawyers Houston, Thompson Reuters, 2017
    • TCDLA Board Member, 2014- 2017
    • TCDLA: DWI Committee Chair, 2014-2017
    • TCDLA: young Attorneys Co-Chair, 2011-2012
    • Houstonia Magazine Top Lawyers in Criminal Defense, 2013 - Present
    • HCCLA: Lead Counsel For Second Chair Program, 2010-2012
    • AV rated as Preeminent Attorney by Martindale-Hubbell, 2014
    • Thomson Reuters' Super Lawyers Rising Star 2010-2013
    • Lawqa Legal Advisor 2010-2013
    • Trial Lawyers College: Voir Dire Workshop, April 2011
    • The College Of The State Bar Of Texas, 2011- Present
    • HCCLA: Elected Board Of Directors, 2010-2014
    • King XXVI Krewe Of Maximilian Galveston Mardi Gras, 2013
    • Member, Strathmore's Who's Who
    • AVVO: Rated 10/10: Superb, 2010-2014
    • Axion Laboratories Forensic Chromatography Course Graduate, 2012-2014
    • Trial Lawyers College: Psychodrama Workshop, June 2010
    • TCDLA: DWI Committee Chair, 2013-2014
    • Texas Monthly: top Young Lawyers in Texas- Rising Star, 2011
    • HCCLA: Unsung Hero Award, 2012
    • Thomson Reuters' Texas Super Lawyer, 2013
    • American Institute of DUI/DWI Attorneys "10 Best" Attorneys for the State of Texas, 2014
    • LAWLINE.COM, Furthered 40 Attorneys in the Nation, 2012
    • Trial Lawyers College: Closing Argument, May 2013

    Special Licenses/Certifications:

    • State of Colorado, 2016
    • Southern District of Texas, 2004
    • Supreme Court of the United States, 2010
    • Fifth Circuit Untied States Court of Appeals, 2010

    Bar/Professional Activity:

    • Member, Phi Delta Theta Fraternity at Texas Christian University
    • State of Texas, 2003
    • American Chemical Society
    • Harris County Criminal Lawyers Association
    • Krewe Of Maximilian Galveston Mardi Gras
    • Sam Hoger MMA Muay Thai
    • National Association of Criminal Defense Lawyers
    • Texas Young Trial Lawyers Association
    • Montgomery County Criminal Lawyers Association
    • BRA-021/Heights Brazilian Jiu Jitsu
    • State of Colorado, 2016
    • National College for DUI Defense
    • Texas Criminal Defense Lawyers Association
    • Houston Bar Association
    • Houston Livestock Show and Rodeo

    Scholarly Lectures/Writings:

    • Network of Professional Brazilians in Houston, Understanding Your Rights in Texas and Secrets to Avoiding a DWI Arrest and Conviction, Houston, TX, 2010
    • TCDLA Voice for the Defense, Vol. 41, No. 6, STORYTELLING: CLOSING ARGUMENTS
    • North Shore Senior High School, Keeping Students Safe from DWI and Drugs, Houston, TX, 2010
    • TCDLA Voice for the Defense, Vol. 41, No. 3, FALSELY ELEVATED ETHANOL RESULTS USING HOSPITAL ENZYMATIC ASSAY BLOOD TESTING
    • Galveston County Criminal Defense Lawyers Assoc. CLETIMBER! Chopping Down High Breath Tests, Galveston, TX, 2010
    • HCCLA Defender Magazine, DEFENDANT'S MOTION TO PROTECT THE FAIRNESS OF FUTURE JURIES
    • Montgomery County Criminal Defense Lawyers Assoc. CLE, New Issues in Montgomery County – Death to the "E" Jury; Getting a Fair Trial, Conroe, TX, 2009
    • TCDLA Voice for the Defense, Vol. 40, No. 8, DEFENDANT'S MOTION TO PROTECT THE FAIRNESS OF FUTURE JURIES
    • David Burrows DWI Defense Project, The Game of Trial; Running the Bases, Dallas, TX, 2009
    • HCCLA Defender Magazine, UNDERMINING THE BREATH TEST: BUILDING THE DISCONNECT DEFENSE
    • See Website for Current List
    • HCCLA Defender Magazine, Challenging Jury panels Assembled through Email Notification
    • TCDLA Voice for the Defense, Vol. 39, No. 4, MOTION CHALLENGING JURY ARRAY AND TO QUASH JURY PANEL
    • TCDLA Voice for the Defense, Vol. 38, No. 91, DEFENDANT'S MOTION TO PROTECT THE FAIRNESS OF FUTURE JURIES
    • HCCLA Training Day: Criminal Law 101, Trial Tactics from the Trenches, Houston, TX, 2013
    • TCDLA DWI Defense Project, Basics of Blood Testing; Attacking a DWI Blood Test, Arlington, TX, 2013
    • Harris County Public Defender, Closing Arguments – Storytelling, Houston, TX, 2013
    • TCDLA Gideon's Trumpet Seminar Series, Basics of Blood Testing; Attacking a DWI Blood Test, Waco, TX, 2013
    • Houston Bar Association at Summer Creek High School, Knowing Your Rights; Sex, Drugs, DWI and Assault, Humble, TX, 2013
    • TCDLA 27th Annual Rusty Duncan Advanced Criminal Law Course, DWI Blood Testing Basic; What Works and What Doesn't, Houston, TX, 2014
    • Harris County Public Defender, Closing Arguments – Storytelling, Houston, TX, 2013
    • Houston Bar Association at Summer Creek High School, Knowing Your Rights; Sex, Drugs, DWI and Assault, Houston, TX, 2013
    • Houston Bar Association, Trial Tactics from the Criminal Trenches, Houston, TX, 2013
    • Houston Bar Association at Westside High School, Mock Trial Voir Dire, Houston, TX, 2013
    • Westlaw Ed. Center National Webinar, Basics of Blood Testing; Attacking a DWI Blood Test, Houston, TX, 2013
    • TCDLA Trial Strategies that Work, Opening and Closing Statement, Houston, TX, Speaker, 2014
    • TCDLA 32nd Annual Prairie Dog Lawyers Advanced Criminal Law, Basics of Blood Testing; Attacking a DWI Blood Test, Lubbock, TX, 2013
    • DWI Forensics Seminar, Basics of Blood Testing through the Disconnect Defense, Austin, TX, 2014
    • Houston Bar Association at Summer Creek High School, The Importance of Jury Service and Knowing the Law, Humble, TX, 2012
    • TCDLA Member’s Trip, 11 Essential DWI Trial Tactics, South Padre, TX, Speaker, 2014
    • TIED FOR #1 SPEAKER, TCDLA Gideon's Trumpet Seminar Series, Basics of Blood Testing; Attacking a DWI Blood Test, Georgetown, TX, 2012
    • Lone Star DWI: Blood Testing 101, Basics of Blood Testing through the Disconnect Defense, Austin, TX, Speaker, 2014
    • TCDLA Gideon's Trumpet Seminar Series, Basics of Blood Testing; Attacking a DWI Blood Test, Abilene, TX, 2012
    • Harris County Municipal Justice Bar Association Annual CLE, Trial Tactics From the Trenches, Houston, TX, 2014
    • TSU Thurgood Marshall School of Law, Criminal Trial Clinic – DWI Trial Tactics and Voir Dire, Houston, TX, 2012
    • Third Annual Hon. Craig Washington & Sen. Rodney Ellis Criminal Law Seminar at Thurgood Marshall School of Law Advanced Trial Techniques, Houston, TX, 2014
    • TCDLA 33rd Annual Prairie Dog Lawyers Advanced Criminal Law, Basics of Blood Testing to Taking Down Big Blood Tests; How We Do It, Lubbock, TX, 2014
    • TCDLA TOP GUN DWI Seminar, Cross-Examination of Breath Test Technical Supervisor, Austin, TX, 2012
    • TIED FOR #1 SPEAKER, TCDLA Top Gun DWI, 10 Silver Bullets for DWI Trials, Houston, TX, 2013
    • Harris County Criminal Lawyers Association CLE, Trial Tactics from the Trenches, Houston, TX, 2012
    • TCDLA/ Public Defender's Office, Indigent Defense Advanced Trial Tactics, Houston, TX, 2013
    • TCDLA Boot Camp for Young Lawyers, DWI Trial Tactics and Skills, Dallas, TX, 2012
    • TCDLA Gideon's Trumpet Seminar Series, Basics of Blood Testing; Attacking a DWI Blood Test, South Padre, TX, 2013
    • TSU Thurgood Marshall School of Law, DWI Nuts and Bolts – DWI Voir Dire on High Breath Test with Accident, Houston, TX, 2012
    • HCCLA Defender Magazine, FALSELY ELEVATED ETHANOL RESULTS USING HOSPITAL ENZYMATIC ASSAY BLOOD TESTING
    • TCDLA Voir Dire Seminar, Car Accidents and Hospital Enzymatic Assay Blood Testing, Houston, TX, 2011
    • HCCLA The Defender, 11 ESSENTIAL DWI TRIAL TACTICS
    • RATED #1 SPEAKER, Texas Criminal Defense Lawyers Assoc.'s Top Gun DWI Seminar, Final Argument, Houston, TX, 2011
    • TCDLA Voice for the Defense, Vol. 42, No. 7, DRAWING THE BLOOD FROM A DWI CASE
    • TCDLA Art of War Trial Tactics, The Game of Trial; Running the Bases, South Padre Island, TX, 2011
    • HCCLA Defender Magazine, DRAWING THE BLOOD FROM A DWI CASE & BLOOD DRAW TREE
    • South Texas College of Law Advanced Advocacy Class, The Game of Trial; Running the Bases, Houston, TX, 2011
    • RATED #1 SPEAKER, TCDLA Art of War Trial Tactics, The Game of Trial; Running the Bases, Tyler, TX, 2011
    • HCCLA Defender Magazine, UNDERMINING THE BREATH TEST: BUILDING THE DISCONNECT DEFENSE
    • RATED #1 SPEAKER, TCDLA Art of War Trial Tactics, The Game of Trial; Running the Bases, Edinburg, TX, 2011
    • TCDLA Voice for the Defense, Vol. 41, No. 8, UNDERMINING THE BREATH TEST: BUILDING THE DISCONNECT DEFENSE
    • RATED #1 SPEAKER, National College of DUI Defense/Texas Criminal Defense Lawyers Assoc.'s Stuart Kinard Advanced DWI Seminar, TIMBER! Chopping Down High Breath Tests without an Expert, San Antonio, TX, 2010
    • HCCLA Defender Magazine, STORYTELLING CLOSING ARGUMENTS

    Verdicts/Settlements:

    • Over 100 Not Guilty Criminal Trial Verdicts, 2008

    Other Outstanding Achievements:

    • IBJJF Houston Fall Open Gold Medal as Brown Belt, 2019
    • Won medals at the Atama Open, Abu Dabai Combat Club, Fight to Win, IBJJF Houston International Open and the Grappler's Quest Tournament.
    •  Warrior Dash finisher, 2010
    • First Chair Harris County Criminal Lawyer's Second Chair Program, 2010
    • Color Run finisher, 2012
    • Youngest criminal Super Lawyer in Texas, 2013
    • Two time Tough Mudder finisher, 2013

    Videos:

    • Houston ABC Local news interviewed me about the problems with Blood Draws., ABC Local News, 2010

    Newsletters:

    Educational Background:

    • The Kinkaid School, 1996
    • Texas Christian University, B.B.A Marketing, 2000
    • South Texas College of Law, J.D., 2003

    Industry Groups

    • BRA-021 Jiu Jitsu
    • DUIDLA
    • Harris County Criminal Lawyers Association
    • Texas Criminal Defense Lawyers Association
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    Office Location for Mark Thiessen

    733 E 12th 1/2 Street
    Houston, TX 77008

    Phone: (713) 864-9000

    Fax: 713-864-9006

    Mark Thiessen:

    Last Updated: 4/27/2020

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