The Law Offices of Sam H. Lock

Law Offices of Sam H. Lock is a San Antonio–based criminal defense firm recognized for disciplined advocacy, ethical representation, and consistent legal excellence. For more than 20 years, the firm has defended individuals facing life-altering criminal allegations across Central and South Texas. A hands-on approach ensures every matter receives careful preparation, strategic analysis, and direct attorney involvement from start to finish.

Law Offices of Sam H. Lock delivers personalized legal solutions built around the facts, risks, and goals unique to each case. Attorney Sam H. Lock personally manages all stages of representation, offering focused attention often absent in larger practices. The firm is known for thorough investigation, proactive motion practice, and aggressive courtroom advocacy designed to protect constitutional rights. Judgment is never passed; priority is placed on safeguarding freedom, reputation, and future opportunities.

Law Offices of Sam H. Lock maintains deep experience across a broad range of state and federal criminal matters. Core practice areas include DWI/DUI defense, federal criminal cases, drug charges, white collar crimes, weapons offenses, sex offenses, internet crimes, homicide, asset forfeiture, and traffic violations. DWI and BWI cases are approached with meticulous review of traffic stops, testing procedures, and evidentiary accuracy. Federal cases receive strategic attention informed by familiarity with complex rules, heightened penalties, and prosecutorial tactics.

Law Offices of Sam H. Lock is widely respected for skilled advocacy in high-stakes matters such as alien and human smuggling, federal drug trafficking, fraud, and violent felony charges. The firm also assists with expunctions to help eligible individuals clear their criminal records. Client testimonials frequently cite clarity of communication, diligence, and unwavering commitment throughout the legal process. Representation extends across San Antonio and numerous Texas counties, reflecting a trusted regional presence.