Cal. Penal Code § 14151

The district attorney may establish a community conflict resolution program pursuant to this title to provide alternative dispute resolution (ADR) services, such as mediation, arbitration, or a combination of both mediation and arbitration (med-arb) in cases, including those brought by a city prosecutor, involving conduct which could be charged as a misdemeanor. The district attorney may contract with a private entity to provide these services and may establish minimum training requirements for the neutral persons conducting the ADR processes.