Cal. Welf. & Inst. Code § 207.5

Every person who misrepresents or falsely identifies himself or herself either verbally or by presenting any fraudulent written instrument to any probation officer, or to any superintendent, director, counselor, or employee of a juvenile hall, ranch, or camp for the purpose of securing admission to the premises or grounds of any juvenile hall, ranch, or camp, or to gain access to any minor detained therein, and who would not otherwise qualify for admission or access thereto, is guilty of a misdemeanor.