Don Mueller has been the Chief of Police for the Cerritos College (CA) Police Department (CCPD) in Los Angeles County since 2020. Prior to joining the CCPD, Chief Mueller retired from the Los Angeles County Sheriff’s Department with over 30 years of service. Chief Mueller is a nationally recognized expert in LGBTQ-related diversity training and policy development. In 2015, Chief Mueller was invited to speak at the White House by the Obama Administration regarding violence targeting LGBTQ persons around the world. 
Chief Mueller has assisted the U.S. Department of Justice in developing diversity training currently in use at the FBI, DOJ, and Secret Service, and has conducted LGBTQ diversity training for over 40 major law enforcement agencies across the country. Chief Mueller is a California P.O.S.T. certified instructor in Cultural Awareness and Sexual Harassment Training and is federally trained as a Hate Crimes Investigator Instructor. Chief Mueller loves to travel internationally with his husband, Oriel. In the past few years, they have skydived, scuba dived and ziplined in multiple countries around the world.