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Criminal & DWI Defense
in Texas
 Attorney Jim Medley Holds a Master’s Degree in Forensic Toxicology with Over 
1,000 Case Dismissals & Reductions

Houston DWI Defense Attorney

Vigorously Defending You Against DWI Charges in TX

Jim Medley DWI Defense Lawyer has a primary law office located in Houston, TX. Attorney Jim Medley has defended people from DWI charges for over 21 years. As a Houston DWI defense lawyer, Jim Medley has extensive experience defending first time DWI cases, 2nd misdemeanor DWI, 3rd or more DWI, DWI with Child Passenger, and felony DWI. Simply being arrested in Harris County does not mean the police legally collected sufficient evidence to overcome dismissal of the charge. Our Houston DWI defense attorney, Jim Medley, has successfully achieved dismissals, not guilty verdicts, and reduced charges in over 1,000 DWI arrests.

Jim Medley’s history of success in Houston criminal defense started well before he became a Houston DWI defense lawyer. Jim was a Texas police officer for over 10 years. He has trained police officers and has been a police academy instructor in DWI arrest procedures. He has been a professor of Criminal Justice and has testified as an expert witness on police DWI arrest procedures. Jim has dissected thousands of police arrests and investigations and has found errors leading to dismissals in many cases.

Jim Medley will closely examine any police investigation looking for legal, procedural, or forensic weaknesses. Schedule a free consultation by calling our Houston DWI defense lawyer at 713-766-1711 or contacting us online.

  • DWI Dismissed


  • DWI Dismissed


  • DWI Dismissed


  • DWI Dismissed


  • DWI Dismissed


  • DWI Dismissed



Meet Your Attorney

Experience You Can Trust
  • Jim  Medley Photo
    Jim Medley

    Attorney & Founder

    Houston Attorney Attorney Jim Medley started building his expertise in the justice system over 30 years ago. He started working as a police officer in the early 1990's. By the mid 90's, he was training and supervising police officers in DWI/ DUI arrests. Jim completed his first master of science degree from Sam Houston State University in 1996. By the age of 35, Jim had three masters degrees and a doctorate degree in Law from the University of Houston. Attorney Medley now has over 20 years ...
    • AVVO 10
    • BBB
    • NCFDD Faculty

A DUI Defense Attorney with a Wealth of Experience

Attorney Jim Medley is one of the only DWI attorneys in the country with a Master of Science degree in Forensic Toxicology. Almost every Harris county DWI arrest involves the work of chemists who work for the police. Whether your case involves a blood draw or a breath test, there is particular forensic documentation that must be properly maintained in order for a measurement of alcohol concentration to be admissible in court. Only specifically trained Houston DWI defense lawyers have the proper background in science to question the admissibility of blood or breath alcohol level lab results. Attorney Medley is uniquely qualified in this area of DWI defense.

Attorney Medley knows that every police arrest does not involve mistakes by officers or insufficient evidence. Some Harris county criminal cases involve strong evidence that was obtained lawfully. These cases require careful counseling and skillful negotiation skills that only experienced Houston DWI defense lawyers have. In these situations, Jim relies on his over 20 years of experience talking to judges and prosecutors about creative ways charges can be resolved with dismissal or reduction even when the evidence is unquestionable.

Testimonials from Clients

Read Feedback from Real People
    Jim Medley and his staff are amazing.

    “After hearing the details of my case, Jim quickly organized a defense plan and kept me updated throughout the duration of the case.”

    - Will T.
    I had a great experience with Jim.

    “Jim Medley did a great job handling my case. He was able to get my case dismissed. I would most definitely recommend him to anyone in need of a lawyer.”

    - Jenn C.
    You will not regret your decision.

    “I highly recommend Jim Medley and his team. My brother was looking up a lawyer to represent me when I found myself in need. Upon his searching he had contacted Jim Medley for me due to his reputation and for that I am glad.”

    - Jesse S.
    I highly recommend attorney Jim Medley to anyone who needs legal, criminal advice, or his expertise.

    “My experience with attorney Jim Medley was very professional and his staff was very friendly. His wonderful staff made sure my son and I felt comfortable at his office, and I was kept informed of my son's case.”

    - Anselmo M.
    I HIGHLY RECOMMEND Mr. Jim Medley for your legal needs.

    “Very professional and knowledgeable. I can honestly say he WILL go out his way for his clients as well as work with any situation that may come. Very honest and direct.”

    - Marcus M.

Experience You Can Trust

Why Hire Jim Medley?
  • Over 10 Years' Experience as a Police Officer
  • Masters Degree in Criminal Justice & Forensic Toxicology
  • Over 30 Years of Experience in the Justice System
  • Hundreds of DWI/DUI Cases Dismissed
  • Instructor of Police Sobriety Tests & Former Police Academy Instructor
  • Professor of Criminal Law

Free Case Review

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