28 Years of Service
Ernest Trevino’s law-enforcement career spans patrol, investigations, academy training, repeat-offender operations, and command-level supervision. He honorably retired from the San Antonio Police Department in 2015. His subsequent leadership includes T3T Services, GT Global Construction, and Department of Homeland Security contracting.
A Pleasanton High School graduate whose family has served Atascosa County for more than 150 years, he is a survivor of the 1999 Atascosa Ambush.
A Family Man
Married to his wife for 40 years, Ernest is a father of three and grandfather of five. Keeping Atascosa County safe for the next generation is personal—it starts with family.
Law Enforcement Career
- Oct 21, 2026
Reactivation of Texas Peace Officer License through TCOLE — background investigation completed and fingerprinted.
- 2015–2026
Yearly firearms qualification at the San Antonio Police Department; certified to carry firearms in the United States.
- Homeland Security
Department of Homeland Security contracting, including “Operation River Wall.”
- 2010–2015
Supervisor, SAPD Patrol Division Command — team supervising ~3,200 sworn officers and 400 civilians; manpower, discipline, grants, $150M budgets, promotions, and Internal Affairs submissions.
- 2007–2009
Applicant Processing; promoted to Supervisor in 2009.
- 2005–2007
Financial Crimes.
- 2001–2005
Undercover Repeat Offender Program (ROP) Detective — 165 high-risk felony warrants, 1,473 felony arrests, and $100M+ in seizures with federal partners.
- 1996–2001
Training Academy Instructor — Driving, Tactics, and Firearms; Driving Coordinator for all SAPD officers and cadets; Adjunct Instructor, Texas A&M.
- 1993–1996
Street Crimes Arrest Teams (SCAT), Patrol — 1,000+ felony on-site arrests and warrants.
- 1991–1993
San Antonio School District Police, Patrol.
- 1987–1991
Pleasanton Police Department, Dispatcher / Certified Telecommunication Operator.
Recognition
- 1992 — Certificate of Merit, apprehension of three robbery suspects
- 1999 — Atascosa Ambush: SAPD Medal of Valor, Texas Governor's Medal of Valor, DPS Director's Award, Oak Farms Dairy Officer of the Year, Parade Magazine Officer of the Year, American Legion Award for Valor
- 2001 — SAPD Training Academy Merit for Service; published in Chiefs Magazine
- 2005 — U.S. Marshals Service Certificate of Appreciation, Operation FALCON
- 2015 — Chief of Police Award; Honorably Retired Award for Exemplary Service
Education & Credentials
- MBA, Operations Management — AIU, 2008
- BA, Criminal Justice — AIU, 2005
- Pleasanton High School — Graduate, 1988
- Harvard edX — Exercising Leadership; Strategic Leadership for Mission Driven Organizations
- Master Peace Officer Certificate