Willie Ng, Jr. - Chief of Investigation Division

Willie Ng, Jr. is the Criminal District Attorney's Office Chief Investigator. As the Chief Investigator, Willie is responsible for coordinating criminal investigations for the Criminal District Attorney’s Office and outside organizations. Willie leads over 40 Investigators and works closely with Prosecutors and Law Enforcement Agencies to successfully prepare criminal cases for prosecution.

Willie received a Bachelor of Science in Criminal Justice from Wayland Baptist University and a Master of Public Administration from St. Mary’s University, and he is currently in the PhD program in Leadership Studies at the University of Incarnate Word in San Antonio, Texas. Willie served in the San Antonio Police Department for over 21 years and was promoted to the rank of Detective Investigator where he held that position for 12 years. Willie served in the Repeat Offenders Program (ROP) where he investigated various criminal offenses such as narcotic violations, burglary, surveillance of suspects wanted for serious crimes and executed search and arrest warrants. Willie also served in the Financial Crimes Unit where he investigated cases involving forgery, credit card abuse, counterfeit checks, tampering with government records and identify theft.
Willie Ng, Jr.
As a San Antonio Police Detective Investigator, Willie was assigned to the United States Secret Service Task Force where he was deputized as a Special Federal Deputy Marshal with the United States Secret Service for over seven years. Willie worked with Secret Service Agents assigned to the San Antonio Field Office to investigate organized crimes such as money laundering, access device fraud, wire fraud, bank and credit card fraud and identity theft while working in cooperation with other Federal Law Enforcement Agencies, Assistant District Attorneys and Assistant United States Attorneys for state and federal prosecution. Willie received Emergency Management training by the U.S. Department of Homeland Security and Master Certification in Law Enforcement by the State of Texas, among others.

In addition to public service with the city of San Antonio, Willie is a successful entrepreneur creating over 300 jobs in the San Antonio area. Willie is passionate about contributing to the quality of life and economic growth, and encouraging the future leaders of our city is invaluable to Willie. He has established three scholarships at St. Mary’s University. Willie is the former interim Chief Executive Officer of JOVEN, Inc., a non-profit organization that focuses on underprivileged youth, and he currently holds the position of Board Chair. Willie is a member of the Hispanic Chamber of Commerce and sits on the Executive Board.

  1. The Criminal District Attorney's Office does not accept criminal complaints via email