Section 627.4 Of Chapter 1.1. Access To School Premises From California Penal Code >> Title 15. >> Part 1. >> Chapter 1.1.
627.4
. (a) The principal or his or her designee may refuse to
register an outsider if he or she has a reasonable basis for
concluding that the outsider's presence or acts would disrupt the
school, its students, its teachers, or its other employees; would
result in damage to property; or would result in the distribution or
use of unlawful or controlled substances.
(b) The principal, his or her designee, or school security officer
may revoke an outsider's registration if he or she has a reasonable
basis for concluding that the outsider's presence on school grounds
would interfere or is interfering with the peaceful conduct of the
activities of the school, or would disrupt or is disrupting the
school, its students, its teachers, or its other employees.