Expert Forensic Toxicology Criminal & DUI/DWI Defense in Texas and Colorado

Expert in Forensic Toxicology

Put Jim Medley’s Experience to Work for You

When facing DWI charges in Texas, you need a highly educated and competent attorney defending you against the harsh Texas criminal justice system. Attorney Jim Medley is far more than your average DWI lawyer; he has taken his education and training to levels that few attorneys have attained and you would have to engage in an exhaustive search to find someone else with the same level of knowledge and experience. Not only is Medley a former police officer with more than 20 years of experience in the field of criminal justice, but he holds not one, but three master’s degrees, including forensic toxicology, which he obtained from the University of Florida in 2004.

Forensic toxicology is the use of toxicology and other disciplines such as pharmacology to aid in the legal investigation of drug use, poisoning or death. Armed with information regarding the physical symptoms recorded, any evidence collected at the crime scene, such as trace residue or available chemicals, the forensic toxicologist must determine which toxic chemicals are present, in what concentrations and the probable effect those chemicals would have on a subject.

Holder of Three Master’s Degrees

The master’s degree in forensic toxicology focuses on general and advanced principals of toxicology, forensic toxicology and drug metabolism, all of which provide a strong foundation in analytical techniques, pharmacokinetics, drug elimination and toxicology. The program also features modules in forensic pharmacology, doping control, postmortem toxicology and expert testimony. The program offered by the University of Florida is excellent for those working in crime laboratories, police departments, medical examiners offices, criminal law and prosecution attorneys.

In addition to holding his Master of Science in forensic toxicology, Medley has a master’s degree in criminal justice management and occupational education. He is also a graduate and member of the National College for DUI Defense, whose members represent the most experienced DUI defense attorneys in America. Attorney Medley has extensive experience trying DWI cases, and he has a broad range of knowledge of the science involved in testing for intoxicants. He also has a command of the legal processes of which DWI cases and DWI laws are formulated after.

  • I would definitely recommend Mr. Medley and his staff.

    “Mr. Medley and his staff were very reassuring and incredibly professional from day one. They got to work right away, set clear expectations and delivered every step of the way.”

    - Olyhn U.
  • I’m very glad I was recommended to Jim Medley.

    “After discussing my case with Jim Medley I felt very comfortable and confident about my current situation and he told me that I had nothing to worry about.”

    - Nick A.
  • Jim Medley and his entire staff made this process in my life extremely smooth.

    “Before I hired him I looked at all his credentials and I then knew he was the best representation for my charge.”

    - Happy Client
  • Without their help my future would have been lost.

    “They worked hard to put me in a position to get my life on the right track.”

    - Happy Client
  • 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.

  • Dismissed DWI 3rd


  • Dismissed DWI


  • Dismissed DWI


  • Dismissed DWI


  • Dismissed DWI 3


  • Dismissed DWI



Meet Your Attorney

Master’s Degrees in Criminal Justice, Education, & Forensic Toxicology
  • 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

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

Call 713-766-1711 or Submit This Form
  • Please enter your first name.
  • Please enter your last name.
  • Please enter your phone number.
    This isn't a valid phone number.
  • Please enter your email address.
    This isn't a valid email address.
  • Please make a selection.
  • Please enter a message.