California Code, Government Code - GOV § 14685

(a)(1) The director shall appoint assistants, clerks, and employees as may be necessary to maintain the state buildings and grounds.  The employees shall not have or perform the duties or functions of peace officers.

(2) The department may establish rules and regulations for the government and maintenance of the state buildings and grounds consistent with this section.  Every person who violates or attempts to violate the rules and regulations is guilty of a misdemeanor.

(c)(1) Consistent with this section, the Department of the California Highway Patrol may establish rules and regulations pertaining to the protection of state employees, properties, buildings and grounds, and occupants of state properties, including, but not limited to, the issuance of permits concerning the use of state buildings, properties, and grounds.

(2) A violation of any rule or regulation adopted pursuant to paragraph (1) is a misdemeanor.

(3) This subdivision does not apply to state buildings or grounds owned, leased, rented, controlled, used, or occupied by the University of California, the California State University, the college named in Section 92200 of the Education Code, the California Exposition and State Fair, the state hospitals of the State Department of State Hospitals or the State Department of Developmental Services, the institutions and camps of the Department of Corrections and Rehabilitation or the Division of Juvenile Justice, and the parks and beaches of the Department of Parks and Recreation.