The Chief of Police is authorized to appoint crossing guards or a school safety patrol to direct traffic at school crossings by means of lawful orders, signs or semaphores. Such persons shall wear a distinctive garb or insignia indicating such appointment. No minor other than a member of the school safety patrol shall direct or attempt to direct traffic unless authorized to do so by order of the Chief of Police. (Ord. 2670 § 1, 1996; Ord. 973 § 1, 1966; prior code § 19.20.1).