Murrieta, CA Public Conduct: Loud Party Ordinance (2026)

04, Loud and Unruly Assemblages, targets parties that draw repeat police attention. 010(A) provides that when a loud or unruly assemblage occurs, whether in a residential area or not, and the city's law enforcement agency must respond, if the senior officer at the scene determines the gathering threatens public peace, health, safety, or general welfare, that officer must notify the property owner, the person in charge of the premises, or the person responsible for the assemblage, or that person's parents or guardians if a minor, that they will be personally liable for the cost of police personnel assigned on special security assignment beyond normal services.

Subsection B requires that this first response be treated only as a warning: the initial response counts as normal police service and does not itself trigger a bill. Subsection C makes clear that any police personnel used after that first warning to control the continuing threat counts as the billable special security assignment. 020 sets how those costs are calculated: personnel and equipment costs from the second and any later response, established by city council resolution and capped at the reasonable cost of providing the service, plus any damage to city property or injury to city personnel. 050 give the billed party the right to a notice and hearing on the reasonableness of the charge, followed by a formal appeal process.