He has 23 years of experience in police risk management, law enforcement training, and internal investigations. Thompson worked as Deputy Special Counsel on a blue-ribbon commission that investigated excessive force and lax discipline at the Los Angeles County Sheriff's Department (LASD) and subsequently implemented reforms. He has served as a consultant on consent decrees in Washington, D.C. and Oakland, as well as provided assistance to Portland, Oregon; Detroit; and several other jurisdictions on best practices.