Houston DWI lawyer prepared to fight the DWI!

Houston DWI Attorney

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Criminal Defense Texas Lawyers - Adamo & Adamo

Top Houston DWI Lawyer

Former Houston & Harris County District Attorney.

Former Counsel for Houston Police Union.

Board Certified Specialist.

“…one of the outstanding criminal defense lawyers in Houston…” – Houston Chronicle

⭐️⭐️⭐️⭐️⭐️ DWI Google--DWI Yelp--DWI Avvo Rating

Founding member DUI Defense Lawyers Association

Experienced Houston DWI Lawyer.

With over fifty years of combined DWI experience our family operated, nationally recognized law firm offers you a highly-qualified Houston DWI lawyer  trained to provide first-class DWI defense.

Contact the #1 DWI lawyer in Houston now!  

(713) 568-7011

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3200 Travis, 4th Floor Houston, TX 77006 office.3200

A+ Rating Better Business Bureau Texas Criminal Defense Attorneys
Houston DWI Attorney - Adamo & Adamo Law Firm

DWI Lawyer - Houston - SFSTsAre the field sobriety tests valid?

DWI attorney HoustonOfficers are trained to administer field sobriety tests in accordance with procedures and standards set out by National Highway Traffic and Safety Administration (NHTSA). The problem is officers often fail to follow the proper procedures. The NHTSA manual itself states, “If any one of the Standardized Field Sobriety Elements is changed, the validity is compromised.” If proper procedures were not followed evidence related to the tests should be suppressed.  At the Adamo & Adamo Law Firm we have a Houston DWI attorney who has completed the NHTSA Standardized Field Sobriety Test Practitioner Course. This course outlines the same principles officers use to detect impaired drivers.  Our attorneys have the skills, resources, and ability to show these tests for what they are. . . nothing more than coordination exercises.

Need a DWI Lawyer in Houston trained in field sobriety exercises? A DWI attorney who attended similar classes as your arresting officer? We have one for you!

DWI Houston Attorney - Breath TestThe breath test - Intoxilyzer5000 and 9000

DWI Lawyer - Houston

With a dismissal rate eight (8) times the national average, our DWI attorneys understand spectroscopy, the “science” behind the intoxilyzer5000 and 9000.

There are many factors that can cause the reported alcohol content to be inaccurate.  There are also specific procedures the breath test operator has to follow or your DWI Houston attorney will fight to suppress the breath test.


  • Was the mandatory 15 minute observation period followed?
  • Did you have anything in your mouth prior to blowing?
  • Was there enough time in between tests?
  • Do you have a medical condition that contributed to the result?
  • Was interference present that impacted the result?


These are some of the many questions our DWI lawyers are trained and experienced to use in fighting Texas DWI charges.

DWI Houston Lawyer - Blood TestGas Chromotagraphy (GCFID)

DUI lawyer HoustonOur DWI lawyers understand Chromotagraphy, the “science” behind blood tests. We examine your case from the time of the stab to the time at the lab to determine what factors caused the false high result.


  • Was the blood drawer qualified?
  • Did the blood drawer use proper protocol in drawing your blood?
  • Were the blood vials and accessories expired?
  • Did the officer timely deliver the blood to the lab?
  • What type of machine analyzed the blood?
  • Was the blood properly analyzed?
  • Was the machine working properly?
  • Was it even your blood?


Our lawyers will work relentlessly to deliver these answers.  Violating established blood-related statutes, protocols, and procedures should make any blood result inadmissible in court.  Getting the blood tossed, makes it much more difficult for the State to prove their DWI case. The blood result is supposed to be science, but often has a closer resemblance to junk-science. Contact a Houston DWI attorney at the Adamo & Adamo Law Firm and learn how!

Intoxication AssaultVehicular Assault

Intoxication assault is 3rd degree felony (2 – 10 years) addressed in Texas Penal Code 49.07.

  1. A person commits intoxication assault if the person, by accident or mistake:
  2. while operating an aircraft, watercraft, or amusement ride while intoxicated, or while operating a motor vehicle in a public place while intoxicated (DWI), by reason of that intoxication causes serious bodily injury to another; or
  3. as a result of assembling a mobile amusement ride while intoxicated causes serious bodily injury to another.

The intoxication must be the cause of the serious bodily injury. For purposes of intoxication assault, serious bodily injury is bodily injury that creates a substantial risk of death or that causes, serious permanent disfigurement, or protracted loss or impairment of the function of any bodily member or organ.

Intoxication ManslaughterVehicular Manslaughter

Texas, like a number of other states also has a strict liability crime known as intoxication manslaughter Texas Penal Code 49.08 makes it a 2nd Degree (2 – 20 years in prison) felony if:

  1. A person:
  2. operates a motor vehicle in a public place, operates an aircraft, a watercraft, or an amusement ride, or assembles a mobile amusement ride; and
  3. is intoxicated (DWI) and by reason of that intoxication causes the death of another by accident or mistake. for drunk drivers who by reason of their intoxication kill another person.

In order to prove intoxication manslaughter the intoxication must be shown to be the legal cause of the death.

With a 40% dismissal or not guilty rate our Houston DWI attorneys are well-equipped to provide you with the best possible outcome.  DWI accusations can have a costly effect on your livelihood and our innovative approach will ensure your future is protected. Don’t just take it from us, see what former DWI clients have to say. We look forward to working as your DWI criminal defense lawyer.

Overview of DWI Penalties



Potential Jail or Prison Time

Maximum Fine

License Suspension


(under 21)

Class C MisdemeanorNone$5001 year
DWIClass B Misdemeanor180 days$2,00090 days – 1 year
2nd DWI


Class A Misdemeanor1 year$4,000180 days – 2 years
3rd DWI3rd Degree Felony2 – 10 years$10,000180 days – 2 years
Intoxication Assault3rd Degree Felony2 – 10 years$10,000180 days – 2 years
Intoxication Manslaughter2nd Degree Felony2 – 20 years$20,000180 days – 2 years
DWI with Child PassengerState Jail Felony180 days – 2 years$10,000180 days – 2 years
Open ContainerClass B Misdemeanor6 – 180 days$2,00090 days – 1 year
DWI with alcohol concentration 0.15 or higherClass A Misdemeanor1 year$4,00090 days – 1 year

People also ask

  • Is a DUI a criminal offense in Texas?

    Yes, a DUI is a criminal offense in Texas. While the acronyms DUI and DWI are often used interchangeably, under Texas law they are two seperate and distinct criminal offenses. Driving Under the Influence or DUI applies to minors. For purposes of alcohol, a minor is anyone under twenty-one years of age. DUI is a criminal offense in Texas if a minor operates a motor vehicle in a public place with any detectable amount of alcohol. A first-offense DUI is punishable up to a $500 fine, a twelve hour alcohl education program, driver’s license suspension not to exceed 1 year, plus additional court costs and fees.

    Driving While Intoxicated or DWI is a criminal offense in Texas if a person operates a motor vehicle in a public place while intoxicated. Intoxicated is defined as not having the normal use of your mental or physical faculties by the introduction of alcohol or drugs or having an alcohol concentration of 0.08 or higher at the time of driving. A first-offense DWI conviction is a Class B Misdemeanor, punishable up to 180 days in the county jail and/or up to a $2,000 fine. A second-offense DWI conviction is a Class A Misdemeanor, punishable up to 1 year in jail and/or up to a $4,000 fine. If you have an alchol concentration 0.15 or higher at the time of test the DWI will be enhanced to a Class A Misdemeanor. You can be charged with a Felony DWI in Texas if you have two prior DWI convictions, drove while intoxicated with a child passenger younger than 15 years of age, committed the criminal offense of intoxication assault, intoxication manslaughter, or felony murder.

  • What is the maximum punishable jail time for a first offense DUI?

    The maximum punishable jail time for a first offense DUI is up to a $500 fine in Texas. Remember a Texas DUI refers to any minor, younger than twenty-one years of age, who operates a motor vehicle in a public place while having any detectable amount of alcohol.

    The maximum punishable jail time for a first offense DWI is up to 180 days in jail and/or up to a $2,000 fine. A first offense DWI is a Class B Misdemeanor in Texas. Certain factors may increase the punishment range.

  • What is a DUI In Texas?

    The main difference between a DUI and a DWI boils down to the age of the driver. Under Texas law, a person 21 years or older who operates a motor vehicle in a public place while intoxicated can be charged with the criminal offense of DWI. If the person is under the age of 21 and operates a motor vehicle in a public place with any detectable amount of alcohol they can be charged with the criminal offense of DUI.
  • What kind of misdemeanor is a DUI?

    A DUI is a Class C Misdemeanor in Texas. A DUI applies to minors under the age of 21. A DWI is a Class B Misdemeanor in Texas if it is a first-offense. A DWI is a Class A Misdemeanor if it is a second-offense. A DWI is a 3rd Degree Felony if it is a third-offense or more.

Texas DWI Lawyer Service Areas

DWI Lawyer – Houston – Harris County DWI Attorney – Fort Bend County DWI Lawyer – Montgomery County DWI Attorney – Galveston County DWI Lawyer – Brazoria County Texas DWI Attorneys

% of Cases Dismissed vs. the National Avg.

5% - Others
40% - A/A

DWI & Criminal Defense Honors:

Nationally Acclaimed Law Firm – U.S. News and World Report
Best Lawyers  – U.S. News and World Report
Lawyer Expert Network – National Recognition
Top 100 Trial Defense Lawyers – National Trial Lawyers Association
TX Super Lawyer – Super Lawyer Magazine
TX Top Attorney – Texas Monthly Magazine
Criminal Defense Specialist Board Certified  – Sam Adamo Sr.
Top 40 Under 40 Lawyer – National Trial Lawyer Association
Top Houston Attorney   – Houstonia Magazine
Highest Legal Ability & Ethical Standard  – Martindale Hubbell
A+ BBB Rating – Better Business Bureau
Founding DUIDLA Member – DUI Defense Lawyers Association (DWI)