California Code, Penal Code - PEN § 14214

(a) The Legislature finds and declares that it is the duty of all law enforcement agencies to immediately assist any person who is attempting to make a report of a missing person or runaway.

(b) The Department of the California Highway Patrol shall continue to implement the written policy, required to be developed and adopted pursuant to former Section 11114.3, for the coordination of each of its divisions with the police and sheriffs' departments located within each division in taking, transmitting, and investigating reports of missing persons, including runaways.