(a) A Sheriff services fee may be imposed when:
(1) A Sheriff’s Department officer at the scene of a party has given written notice to a person responsible for the party that the party violates the law; and
(2) A subsequent Sheriff’s Department response to the party is required to control the threat to public peace, health, safety and welfare and to disperse the party.
(b) The provisions of this Chapter are in addition to the authority of the Sheriff to regulate parties and shall supplement, and not supplant, the exercise of any other law including, but not limited to, arrest or citation pursuant to the California Penal Code or local law.