What is the los angeles county public defender? The Los Angeles County Public Defender is a law office established and funded by the County of Los Angeles. The functions of the office are defined by the county charter and by California state law.How do i contact the los angeles county district attorneys office? How do I contact you? Email the office at [email protected] or write a letter and send it to the Los Angeles County District Attorney's Office, 211 West Temple Street, Suite 1200, Los Angeles, CA 90012. I want to file a complaint against a police officer or sheriff's deputy.When was the first public defender in the world? In 1914, the world’s first public defender’s office opened in Los Angeles County.