Recognized in Best Lawyers since 2019 
Sam H. Lock is a San Antonio criminal defense attorney who has been recognized by Best Lawyers since 2019 in Criminal Defense: General Practice, Criminal Defense: White-Collar, and DUI/DWI Defense. With more than 25 years of legal experience, he represents clients facing a broad range of state and federal criminal charges, including DWI, drug offenses, white-collar crimes, weapons charges, sex offenses, homicide, internet crimes, asset forfeiture, and human or alien smuggling allegations.
Mr. Lock earned his undergraduate degree from Texas A&M University and his J.D. from St. Mary’s University School of Law. He has served on the boards of the Texas Criminal Defense Lawyers Association and the San Antonio Criminal Defense Lawyers Association and frequently lectures at continuing legal education seminars. He was named Best Lawyers® “Lawyer of the Year” in San Antonio for DUI/DWI Defense in 2020 and Criminal Defense: White-Collar in 2022 and 2026.
