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Official Site of The LOS ANGELES POLICE DEPARTMENT

About the Technical Investigation Division (TID)

Technical Investigation Division
C. Erwin Piper Technical Center
555 Ramirez Street
Los Angeles, CA 90012
Phone 213-473-0630
FAX 213-473-3115

The Technical Laboratory is comprised of four specialized units that provide support services to investigative personnel in the Department - the Latent Print Unit, the Photographic Unit, the Polygraph Unit, and the Electronics Unit. Most Technical Laboratory personnel operate out of Piper Technical Center. Some field services operate out of the Van Nuys Community Police Station.