California Code, Public Resources Code - PRC § 5560.1

In order to protect property, improvements, and facilities of parks under its management or belonging to the district and to preserve the peace within such parks, the district board may confer, on uniformed park employees which it may designate, the authority to issue citations for misdemeanor and infraction violations of state law, city or county ordinances, or district regulations or ordinances, when the violation is committed within a district park and in the presence of the employee issuing the citation.  The citations shall be issued in accordance with Chapter 5C (commencing with Section 853.5) of Title 3 of Part 2 of the Penal Code.