PEN §409.7: (a) If peace officers, as defined in Chapter 4.

(a) If peace officers, as defined in Chapter 4.5 (commencing with Section 830) of Title 3 of Part 2, close the immediate area surrounding any emergency field command post or any other command post, or establish a police line, or rolling closure at a demonstration, march, protest, or rally where individuals are engaged in activity that is protected pursuant to the First Amendment to the United States Constitution or Article I of the California Constitution, the following requirements shall apply: (1) A duly authorized representative of any news service, online news service, newspaper, or radio or television station or network may enter the closed areas described in this section. (2) A peace officer or other law enforcement officer shall not intentionally assault, interfere with, or obstruct the duly authorized representative of any news service, online news service, newspaper, or radio or television station or network who is gathering, receiving, or processing information for communication to the public. (3) A duly authorized representative of any news service, online news service, newspaper, or radio or television station or network that is in a closed area described in this section shall not be cited for the failure to disperse, a violation of a curfew, or a violation of paragraph (1) of subdivision (a) of Section 148, for gathering, receiving, or processing information. If the duly authorized representative is detained by a peace officer or other law enforcement officer, that representative shall be permitted to contact a supervisory officer immediately for the purpose of challenging the detention, unless circumstances make it impossible to do so. (b) This section does not prevent a law enforcement officer from enforcing other applicable laws if the person is engaged in activity that is unlawful. (c) This section does not impose, and shall not be used as the basis for, criminal liability.