Investigations Bureau

The investigations bureau commander is responsible for managing the bureau’s operations. The Investigations Bureau commander is also responsible for all evidence / property maintained on police cases in the Evidence Bureau. One sergeant is assigned to assist the bureau commander as a first-line supervisors.


The Investigations Bureau is responsible for the investigation of all felony and misdemeanor complaints that occur within its jurisdiction. Investigators apprehend, interrogate, and process all persons arrested for these offenses; maintain a liaison with the district Attorney’s Office, and affect the recovery of stolen property. The Investigations Bureau is also charged with the investigation of various non-criminal matters, including missing persons, business and liquor applications, matters wherein an investigation would be beneficial to public welfare, or required by statute.

Contact Information

Los Angeles County District Attorney Office Victim / Witness Assistance Program

Alhambra Office
150 W Commonwealth Avenue
Alhambra, CA 91808
Phone: 626-308-5431
Fax: 626-281-4724