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Mark Thiessen was born and raised in Houston, Texas. Mr. Thiessen attended the Village School and St. Francis Episcopal Middle School before graduating from the Kinkaid School in 1996. While at the Kinkaid School, he won state in advanced acting and was captain of the tennis team. He then attended and graduated from Texas Christian University in 2000 with a Bachelor’s of Business Administration in Marketing. While at TCU, Mr. Thiessen was a member of Phi Delta Theta fraternity and on the dean’s list.

He then came back home to Houston and continued his education at South Texas College of Law (STCL) in Houston. While attending STCL, Mr. Thiessen was active in mock trial, various law societies, and intramural football. He also studied International Criminal Law at the University of Malta during the Summer of 2001. Additionally, Mr. Thiessen studied abroad at the BPP Law School in London, England and at the University of Hawaii. Studying in these unique legal environments required Mr. Thiessen to adapt to various social, cultural, ethnic, and economic groups, which is evident in his personality today.

Early Legal Career

After graduating from law school, Mr. Thiessen practiced civil law for three years in cases ranging from admiralty and maritime issues at Bell, Ryniker & Letourneau to toxic tort and personal injury claims at Brown Sims, P.C. He still maintains many close connections in the civil world. In January 2006, he followed his true calling to the criminal court room and honed his skills as a trial lawyer.

Trichter & Murphy, P.C., hired Mr. Thiessen as an associate in January 2006, where he worked for over five years. There, he studied under one of the foremost legal authorities in Texas.

DWI & Controlled Substance Specialties

Although his practice includes all areas of criminal defense, Mr. Thiessen maintains an emphasis on DWI and drugs or controlled substances. The trial of a DWI case dictates that on any given date, a trial lawyer must be not only well-versed in Rules of Evidence, case law pertaining to DWIs and constitutional law, but also numerous areas of science such as anatomy, physiology, toxicology, chemistry, computer science, biology, and physics.

A DWI case is the most difficult legal case to try because of the quality of adverse political sentiments against alleged drunk drivers such as Mothers Against Drunk Driving (MADD), much of the offense being videotaped, and field sobriety tests that have become scientifically standardized. Also, many DWIs become more difficult when they are coupled with accidents that require accident reconstruction knowledge; injuries that occurred in accidents that require a working knowledge of anatomy, physiology, and medicine; and chemical testing that requires breath, blood, and urine. Clearly, for the skilled DWI trial lawyer, the defense of a citizen accused of DWI is intensely complex and requires a great deal of legal and scientific preparation. DWI defendants are unique in the criminal justice system and no greater opportunity exists for an innocent person to be convicted than with a DWI charge.

Aggressive Trial Representation

Mr. Thiessen prides himself in being an aggressive trial lawyer. If the district attorney will not bargain or justice will not be served by allowing the client to plead guilty, Mr. Thiessen will aggressively, passionately, and professionally represent you in trial. He has a strong reputation as a trial lawyer and works hard to maintain that status. Mr. Thiessen is also the youngest criminal Super Lawyer in Texas for 2013. He was also the youngest criminal attorney in Texas named to the Super Lawyers® list of the Top 100 Lawyers in Houston for 2016 and 2017

Mr. Thiessen Is a True Fighter

Fearlessness in the courtroom is a byproduct of Mr. Thiessen’s normal routine. Outside the courtroom, he is an avid competitor in Brazilian jiu jitsu and muay thai. He is a member of BRAZIL-021 School of Jiu Jitsu and has won medals at the Atama Open, Abu Dabai Combat Club, Fight to Win, IBJJF Houston International Open, and the Grappler’s Quest Tournament. He is also a member of Team Hoger Muay Thai and is a 2010 Warrior Dash finisher. Mr. Thiessen is also 2012 Color Run finisher and two time 2013 Tough Mudder finisher.

If you have a case and want an attorney who does not back down, you must call Mr. Thiessen at (713) 864-9000.

UPCOMING SPEAKING ENGAGEMENTS

AUSTIN, TX

TCDLA 6th Annual Lonestar DWI Forensics; BWI Defenses

ROUND TOP, TX

TCDLA Round Top VIII Advanced Skills Training; Psychodrama in DWI Cases

AUSTIN, TX

State Bar of Texas

Handling Your First (or Next) DWI Case: Handling Breath/Blood Test Analysts

AUSTIN, TX

TCDLA 16th Annual Forensics Seminar: Accident Reconstruction

Past Speaking Engagements

HOUSTON, TX

Harris County Public Defenders Office CLE; Defending Intoxication Related Crimes

PHILADELPHIA, PA

DUIDLA Fall Seminar 2018

Not Guilty v. Cerberus; Beating Intoxicated Manslaughter Cases

HOUSTON, TX

TCDLA Top Gun DWI Seminar

Top 10 DWI Trial Tactics to Shooting Down the State’s Case

SAN ANTONIO, TEXAS

TCDLA Rusty Duncan Seminar

Not Guilty v Cerberus: Beating Intox Manslaughter Cases

HUNTSVILLE, TX

TCDLA 42nd Annual Tim Evans Trial College; Instructor

AUSTIN, TX

TCDLA Lone Star DWI

TIED FOR #1 SPEAKER: Beating Intoxicated Manslaughter Cases: Not Guilty v Cerberus

LUBBOCK, TX

TCDLA Prairie Dog Seminar

Attacking Blood Labs and Beating Intoxicated Manslaughter Cases

CHARLESTON, NC

DUIDLA: Fall Seminar

Voir Dire & Cross in Blood Test Cases

HOUSTON, TX

TDLA Top Gun DWI Seminar

Speaking with DA on DWI Trial Tactics. Voted #1 Speaker for this speaking engagement

HOUSTON, TX

HYLA

How to Successfully Start and Manage a Law Firm

HOUSTON, TX

State Bar of Texas

Advanced Criminal Law Seminar: Intoxilyzer 9000

SAN ANTONIO, TX

TCDLA 30th Annual Rusty Duncan Advanced Criminal Law

Intoxilyzer 9000

HOUSTON, TX

South Texas College of Law

Professor Moses’ Openings and Closings Class: DWI Trial Tactics

HOUSTON, TX

TCDLA Training Day

CLE: DWI Pretrial Motions to Suppress

COLUMBUS, OH

Ohio Association of Criminal Defense Lawyers Best in the Midwest

Ohio Advanced DUI Seminar- Defense v. Prosecution DWI Techniques

CARIBBEAN SEA

TCDLA President’s Cruise

CLE: Attacking the Drug Recognition Expert

LUBBOCK, TX

TCDLA Prairie Dog Seminar

Attacking the DRE Expert

SAN ANTONIO, TX

Stuart Kinard Memorial Advanced DWI Seminar

TIED FOR #1 SPEAKER: Defense v. DA Trial Tactics with Bexar County DA Nico LaHood

SAN ANTONIO, TX

TCDLA Stuart Kinard Advanced DWI Seminar

Speaking with Bexar County District Attorney Nico Lahood on DWI trial strategies from both sides

TUNICA, MS

Tennessee Association of Criminal Defense Lawyers Annual DUI Seminar and Training

Not Guilty v. Goliath; Taking Down High Blood Tests Using the Disconnect Defense.

HOUSTON, TX

TCDLA Top Gun DWI

Intoxilyzer 9000

SAN ANTONIO, TX

SACDLA Seminar

Intoxication Manslaughter Trial Tactics

AUSTIN, TX

TCDLA 3rd Annual Lonestar DWI

TIED FOR #1 SPEAKER: Candida Albicans and the Autobrewery Syndrome

DALLAS, TX

State Bar of Texas 42nd Annual Advanced Criminal Law Seminar

DWI Trial Tactics and Case Law Update

SAN ANTONIO, TX

TCDLA 29th Annual Rusty Duncan Seminar

TIED FOR #1 SPEAKER: DWI Voir Dire From Full Refusals to Intoxicated Manslaughter

SALT LAKE CITY, UT

Utah Association of Criminal Defense Lawyers Advanced DWI Seminar

Not Guilty v. Goliath, Taking Down High Blood Tests Without an Expert

SAN ANTONIO, TX

TCDLA DWI Defense Project

DWI Blood Cross-Examination

SAN ANTONIO, TX

TCDLA, SACDLA, SABA 53rd Annual Anees Semaan Advanced Criminal Law Seminar

DWI Voir Dire From Full Refusals to Intoxicated Manslaughter

COLUMBUS, OH

Ohio Association of Criminal Defense Lawyers Best in the Midwest

Not Guilty Versus Goliath; Taking Down High Blood Tests Using the Disconnect Defense

COLLEGE STATION, TX

TCDLA Upholding Justice One Client at a Time

VOTED #1 SPEAKER: DWI Techniques

SAN ANTONIO, TX

TCDLA Stuart Kinard Memorial Advanced DWI Seminar

Attacking the DRE Expert

LITTLE ROCK, AR

Pulaski County Bar Association – DWI Institute: My Case is a Wreck

Not Guilty v. Goliath & DWI Blood Test Disconnect Defense

AUSTIN, TX

TCDLA 2nd Annual Lone Star DWI: Drugs

DWI Hallucinogens and Stimulants & Intoxilyzer 9000

CHICAGO, IL

DUIDLA

Blood Test Disconnect Defence and Cross Examination Techniques

SAN ANTONIO, TX

28th Annual TCDLA Rusty Duncan Seminar

Blood Testing Science and Case Law

ARLINGTON, TX

TCDLA DWI Defense Project

TIED FOR #1 SPEAKER: Cross Examination of the Blood Analyst

SAN ANTONIO, TX

TCDLA, SACDLA, SABA 52nd Annual Anees Semaan Advanced Criminal Law Seminar

Not Guilty v. Goliath; Taking Down High Blood Tests Using the Disconnect Defense

WACO, TX

TCDLA Training Your Defense Team to Win

Jury Selection

LUBBOCK, TX

Annual Prairie Dog Advanced Criminal Law

TIED FOR #1 SPEAKER: Not Guilty v. Goliath; Taking Down High Blood Tests Using the Disconnect Defense

DENTON, TX

Jolly Roger Seminar

DWI Blood Trial Tactics

SAN ANTONIO, TX

2014 Stuart Kinard Memorial Advanced DWI Seminar

VOTED #1 SPEAKER: Not Guilty vs. Goliath, Taking Down High Blood Tests with the Disconnect Defense

DALLAS, TX

TCDLA: Cross Examination

TIED FOR #1 SPEAKER: Cross of DWI Blood Expert

HOUSTON, TX

TCDLA: Top Gun DWI Seminar

Blood Test Voir Dire & Preparing the Jury for Acquittal

SOUTH PADRE ISLAND, TX

TCDLA Member’s Trip

VOTED #1 SPEAKER: Not Guilty vs Goliath & Taking Down High Blood Tests Using the Disconnect Defense

AUSTIN, TX

TCDLA Lone Star DWI

VOTED #1 SPEAKER: Blood 101: Basics of Blood Testing & Taking Down High Blood Tests Using the Disconnect Defense

SAN ANTONIO, TX

27th Annual TCDLA Rusty Duncan Advanced Criminal Law Course

DWI Blood Testing Basic; What Works and What Doesn\'t

HUMBLE, TX

Houston Bar Association at Summer Creek High School

Sex, Drugs and Alcohol; Keeping Kids Scared Straight

LONGVIEW, TX

TCDLA Trial Strategies that Work

VOTED #1 SPEAKER: Opening and Closing Statement

HOUSTON, TX

Harris County Municipal Justice Bar Association Annual CLE

Trial Tactics From the Trenches

HOUSTON, TX

Third Annual Hon. Craig Washington & Sen. Rodney Ellis Criminal Law Seminar

Advanced Trial Techniques

LUBBOCK, TX

TCDLA 33rd Annual Prairie Dog Lawyers Advanced Criminal Law

Basics of Blood Testing to Taking Down Big Blood Tests; How We Do It

HUMBLE, TX

Houston Bar Association at Summer Creek High School

Knowing Your Rights; Sex, Drugs, DWI and Assault

HOUSTON, TX

Houston Bar Association at Westside High School

Mock Trial Voir Dire

HOUSTON, TX

TCDLA / Public Defender’s Office

Indigent Defense Advanced Trial Tactics

HOUSTON, TX

TCDLA Top Gun DWI

10 Silver Bullets for DWI Trials

SOUTH PADRE ISLAND, TX

TCDLA Gideon’s Trumpet Seminar Series

Basics of Blood Testing; Attacking a DWI Blood Test

HOUSTON, TX

HCCLA Training Day: Criminal Law 101

Trial Tactics from the Trenches

ARLINGTON, TX

TCDLA DWI Defense Project

Basics of Blood Testing; Attacking a DWI Blood Test

HOUSTON, TX

Harris County Public Defender

Closing Arguments – Storytelling

WACO, TX

TCDLA Gideon’s Trumpet Seminar Series

Basics of Blood Testing; Attacking a DWI Blood Test

HUMBLE, TX

Houston Bar Association at Summer Creek High School

Knowing Your Rights; Sex, Drugs, DWI and Assault

HOUSTON, TX

Harris County Public Defender

Closing Arguments – Storytelling

HOUSTON, TX

Westlaw Ed. Center National Webinar

Basics of Blood Testing; Attacking a DWI Blood Test

HOUSTON, TX

Houston Bar Association

Trial Tactics from the Criminal Trenches

LUBBOCK, TX

TCDLA 32nd Annual Prairie Dog Lawyers Advanced Criminal Law

Basics of Blood Testing; Attacking a DWI Blood Test

HUMBLE, TX

Houston Bar Association at Summer Creek High School

The Importance of Jury Service and Knowing the Law

GEORGETOWN, TX

TCDLA Gideon’s Trumpet Seminar Series

Basics of Blood Testing; Attacking a DWI Blood Test

HOUSTON, TX

TSU Thurgood Marshall School of Law

Criminal Trial Clinic – DWI Trial Tactics and Voir Dire

AUSTIN, TX

TCDLA TOP GUN DWI Seminar

Cross-Examination of Breath Test Technical Supervisor

HOUSTON, TX

Harris County Criminal Lawyers Association CLE

Trial Tactics from the Trenches

DALLAS, TX

TCDLA Boot Camp for Young Lawyers

DWI Trial Tactics and Skills

HOUSTON, TX

TSU Thurgood Marshall School of Law

DWI Nuts and Bolts – DWI Voir Dire on High Breath Test with Accident

HOUSTON, TX

TCDLA Voir Dire Seminar

Car Accidents and Hospital Enzymatic Assay Blood Testing

HOUSTON, TX

Texas Criminal Defense Lawyers Assoc.’s Top Gun DWI Seminar

Final Argument

SOUTH PADRE ISLAND, TX

TCDLA Art of War Trial Tactics

The Game of Trial; Running the Bases

HOUSTON, TX

South Texas College of Law Advanced Advocacy Class

The Game of Trial; Running the Bases

TYLER, TX

TCDLA Art of War Trial Tactics

The Game of Trial; Running the Bases

EDINBURG, TX

TCDLA Art of War Trial Tactics

The Game of Trial; Running the Bases

SAN ANTONIO, TX

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

HOUSTON, TX

Network of Professional Brazilians in Houston

Understanding Your Rights in Texas and Secrets to Avoiding a DWI Arrest and Conviction

HOUSTON, TX

North Shore Senior High School

Keeping Students Safe from DWI and Drugs

GALVESTON, TX

Galveston County Criminal Defense Lawyers Assoc. CLE

TIMBER! Chopping Down High Breath Tests

CONROE, TX

Montgomery County Criminal Defense Lawyers Assoc. CLE

New Issues in Montgomery County – Death to the \"E\" Jury; Getting a Fair Trial

DALLAS, TX

David Burrows DWI Defense Project

The Game of Trial; Running the Bases

National Honors

  • The National Trial Lawyers: Top 100 Trial Lawyers (2014-Present)
  • AVVO Rated 10/10: Superb (2010-Present)
  • DUI Defense Lawyers Association Secretary(2018)
  • AV Rated as Preeminent Attorney by Martindale-Hubbell (2014-Present)
  • ACS-CHAL Forensic Lawyer-Scientist Graduate (2014-Lifetime)
  • Charter Member & Board of Directors DUI Defense Lawyers Association (2013-Present)
  • Axion Laboratories Forensic Chromatography Course Graduate(2014-Present)
  • Thomson Reuters’ Texas Super Lawyer (2013-Present)
  • Lawline.com Faculty Member (2011-Present)
  • Strathmore’s Who’s Who Lifetime Member (Lifetime)
  • LawQA Legal Advisor (2010-Present)
  • Trial Lawyers College: Closing Argument(May 2013)
  • Lawline.com, Furthered 40 Attorneys in the Nation (2012)
  • Trial Lawyers College: Voir Dire Workshop (April 2011)
  • Trial Lawyers College: Psychodrama Workshop (June 2010)

State Honors

  • Texas Super Lawyer (2010-2018)
  • Top 100 Super Lawyers in Houston by Thompson Reuters (2017-2018)
  • Top 100 Super Lawyers in Texas by Thompson Reuters(2017)
  • TCDLA DWI Trial Warrior(2016-Present)
  • TCDLA Associate Board Member(2014-2016)
  • TCDLA Board Member (2016-Present)
  • American Institute of DUI/DWI Attorneys “10 Best” Attorneys for the State of Texas (2014)
  • TCDLA: DWI Committee Chair (2013-2018)
  • TCDLA: Young Attorneys Co-Chair(2011-2012)
  • The College of the State Bar of Texas (2011-Present)
  • Texas Monthly: Top Young Lawyers in Texas – Rising Star (2011)
  • Forensic Science Commission(2015)

Local Honors

  • Vice President of HCCLA (2018)
  • H Texas Magazine: Houston’s Top Lawyer for Criminal Defense(2014-Present)
  • Houstonia Magazine Top Lawyers in Houston – Criminal Defense (2015-Present)
  • HCCLA: Elected Board of Directors (2012-Present)
  • HCCLA: Unsung Hero Award (2012)
  • HCCLA: Lead Counsel for Second Chair Program (2010-2015)
  • King XXVI Krewe of Maximilian – Galveston Mardi Gras (2013)
  • Harris County Public Defender’s Office FACT Program Mentor(2013-2015)

Organizations & Committees

  • DUI Defense Lawyers Association
  • National College for DUI Defense
  • National Association of Criminal Defense Lawyers
  • American Chemical Society
  • Texas Criminal Defense Lawyers Association
  • Texas Young Trial Lawyers Association
  • Harris County Criminal Lawyers Association
  • Houston Bar Association
  • Krewe of Maximilian Galveston Mardi Gras
  • Houston Livestock Show and Rodeo
  • BRA-021/Heights Brazilian Jiu Jitsu
  • Sam Hoger MMA Muay Thai

Mark Thiessen's Publications

Mark Thiessen has been published in numerous magazines and publications due to his expert knowledge in DWI and criminal defense law. To learn more, contact our firm at (713) 864-9000.

March 2018

TCDLA Voice for the Defense; pg. 23

Article: Not Guilty v. Cerberus: Winning Intoxicated Manslaughter Trials


January 2018

5th Annual Lonestar DWI Seminar

Presentation: Not Guilty v. Cerberus; Winning Intoxicated Manslaughter Trials
Article: Not Guilty v. Cerberus; Winning Intoxicated Manslaughter Trials


November 2015

HCCLA The Defender (Fall 2015)

Fear and Loathing in South Texas; If Dr. Hunter S. Thompson Got a DWI in Texas in 2015


November 2015

TCDLA Voice for the Defense, Vol. 44, No. 9, pg. 20

Fear and Loathing in South Texas; If Dr. Hunter S. Thompson Got a DWI in Texas in 2015


November 2015

Counterpoint – The Journal of Science and the Law

The Intoxilyzer™ 9000


August 2015

TCDLA Voice for the Defense

Intoxilyzer™ 9000 in Texas


November 2014

TCDLA Voice for the Defense

Not Guilty versus Goliath; Conquering Giant Blood Tests Using the Disconnect Defense, pg. 32


Aspatore 2015 Edition

Inside the Minds; Strategies for Defending DWI Cases in Texas

Not Guilty versus Goliath: Conquering Giant Blood Tests Using the Disconnect Defense, pg. 85


Summer 2014

HCCLA The Defender

Not Guilty v. Goliath; Conquering Giant Blood Tests Using the Disconnect Defense.


June 2014

TCDLA Voice for the Defense

Eleven Essential DWI Trial Tactics


Winter 2013

HCCLA The Defender

11 Essential DWI Trial Tactics


September 2013

TCDLA Voice for the Defense, Vol. 42, No. 7

Drawing the Blood From a DWI Case


Fall 2013

HCCLA Defender Magazine

Drawing the Blood From a DWI Case & Blood Draw Tree


Summer 2013

HCCLA Defender Magazine

Undermining the Breath Test: Building the Disconnect Defense


October 2012

TCDLA Voice for the Defense, Vol. 41, No. 8

Undermining the Breath Test: Building the Disconnect Defense


Summer/Fall 2012

HCCLA Defender Magazine

Storytelling Closing Arguments


July/August 2012

TCDLA Voice for the Defense, Vol. 41, No. 6

Storytelling: Closing Arguments


April 2012

TCDLA Voice for the Defense, Vol. 41, No. 3

Falsely Elevated Ethanol Results Using Hospital Enzymatic Assay Blood Testing


Spring 2012

HCCLA Defender Magazine

Falsely Elevated Ethanol Results Using Hospital Enzymatic Assay Blood Testing


Spring 2012

HCCLA Defender Magazine

Defendant’s Motion to Protect the Fairness of Future Juries


October 2011

TCDLA Voice for the Defense, Vol. 40, No. 8

Defendant’s Motion to Protect the Fairness of Future Juries


Fall 2011

HCCLA Defender Magazine

Undermining the Breath Test: Building the Disconnect Defense


Summer 2010

HCCLA Defender Magazine

Challenging Jury panels Assembled through Email Notification


May 2010

TCDLA Voice for the Defense, Vol. 39, No. 4

Motion Challenging Jury Array and to Quash Jury Panel


November 2009

TCDLA Voice for the Defense, Vol. 38, No. 91

Defendant’s Motion to Protect the Fairness of Future Juries

In the Media

Channel 13

KHOU Channel 11

  • Montgomery County DWI cases may be botched
  • New Charges Filed in HPD Ticket-Rigging Scandal

Click 2 Houston

Fox 26

CW 39

Waco Tribune-Herald

KXXV ABC 25

KCEN 6

LubbockOnline.com

KCBD 11

  • Isaacks not guilty of intoxication manslaughter

KPLC 7

  • Jury finds Isaacks not guilty of intoxication manslaughter

Houston Press

Houston Chronicle

Comcast 17 - Houston Media Source

TCDLA Reasonable Doubt

Press Releases

September 28, 2017

Houston Attorney Mark Thiessen Wins Fifth Consecutive Super Lawyers Award and Makes Top 100 Lawyers in Houston

Criminal Defense Attorney Mark Thiessen is the only DWI Attorney to rank in Top 100 for prestigious Thomson Reuters Award


October 24, 2016

Attorney Mark Thiessen Receives 4th Consecutive Super Lawyers Honor

Houston lawyer recognized by peers for professional excellence


July 5, 2016

Houston Criminal Defense Attorney Achieves Five Not Guilty Verdicts in Prominent Case

Largest intoxication manslaughter victory in Harris County history


November 5, 2015

Most Recent Notable Victories for Mark Thiessen

Local criminal defense attorney, Mark Thiessen, of the Thiessen Law Firm earned four not guilty verdicts back-to-back in October


September 27, 2015

Attorney Mark Thiessen Receives Super Lawyers Honor for 3 Consecutive Years


February 23, 2015

Mark Thiessen Achieves Personal Best

Top notch Houston criminal defense attorney Mark Thiessen earns new personal record: Four not guilty verdicts in 12 business day


November 24, 2014

Stay Safe, Avoid Being Pulled Over This Thanksgiving


October 15, 2014

Mark Thiessen Wins 8th Not Guilty Where Blood Comes Into Evidence in 2014


September 22, 2014

Attorney Mark Thiessen Receives Super Lawyers Honor for 2 Consecutive Years


August 30, 2014

Mark Thiessen Completes ACS-CHAL Forensic Lawyer Scientist Designation at Axion Labs


August 22, 2014

Mark Metzger and Mark Thiessen of Thiessen Law Firm Win Two More “Not Guilty” Verdicts for Clients


May 12, 2014

The Most Winning Texas DWI Attorney, When the Blood Comes in to Evidence, Mark Thiessen, Wins His 6th Not Guilty Blood Case in Harris County Criminal Court at Law No. 3


April 12, 2014

Houston Criminal Defense Attorney, Mark Thiessen has Achieved the AV Preeminent® Rating – the Highest Possible Rating from Martindale-Hubbell®


April 8, 2014

Top-Notch Criminal Defense Attorney Mark Thiessen Recent Notable Victories


December 6, 2013

Houston Criminal Defense Attorney, Mark Thiessen, WINS for Client: 13th Not-Guilty Verdict


September 9, 2013

Houston Attorney Mark Thiessen Given Super Lawyers Award Honor


June 22, 2013

Houston Criminal Defense Attorney Mark Thiessen Wins for Client: 6th Not- Guilty Verdict in a Row


September 20, 2012

Top-notch Law Firm Celebrates One Year of Fighting for justice Thiessen Law Firm Returns the Unjustly Accused to their Families

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    DWI

"If the district attorney will not bargain or justice will not be served by allowing the client to plead guilty, Mr. Thiessen will aggressively, passionately, and professionally represent you in trial. He has a strong reputation as a trial lawyer and works hard to maintain that status."

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Recent News & Updates

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