Penal Code §11166 (the Child Abuse and Neglect Reporting Act) makes various professionals mandated reporters of child abuse. For security guards, the law:

Explanation

PC §11165.7 lists statutory mandated reporters under CANRA, including teachers, social workers, peace officers, medical personnel, and clergy. 'Security guard' is not listed as a standalone category, but guards employed in covered settings (schools, child-care facilities, churches with youth programs) may be mandated under those settings' categories. Mandated reports must be made by telephone immediately (or as soon as practicably possible) and followed by a written report within 36 hours under §11166. Any person may make a voluntary report and is immunized under §11172. Guards should follow employer policies and err on the side of reporting suspected child abuse to law enforcement or CPS.