When fires, accidents, wrecks, explosions, crime scenes, parades, demonstrations, or other occasions cause or may cause persons to collect on the public sidewalks, streets, alleys, highways, or parks, the Director of the Police Department or his designee may establish such area or zone as he considers necessary for the purpose of affording a clearing for: (1) the operation of firemen or police officers; (2) the passage of a parade; (3) the movement of traffic; (4) the exclusion of the public from the vicinity of a riot, disorderly gathering, accident, wreck, explosion, crime scene, or other emergency; (5) the protection of persons and property. Every person present at the scene of such an occasion, shall comply with any necessary order or instruction of any police officer. No person shall enter such area or zone, unless duly authorized by the person in command on such an occasion. However, any person who has an entry pass issued in his name by the Phoenix Police Department shall be permitted within the lines established by the Phoenix Police Department. When such person is entering or within the lines, the pass shall be prominently displayed all the while. Any person within the lines pursuant to such pass is still subject to the necessary orders and instructions of any police officer at the scene. Any entry pass issued hereunder shall be valid for only the specified time and occasion for which it was issued. Failure to comply with any provision herein is unlawful. The provisions herein shall be subject to any other provision of law concerning the authority of the Director of the Fire Department at the scene of a fire or within a fire lane thereat. (Ord. No. G-2321, § 1; Ord. No. G-2391, § 1; Ord. No. G-5444, § 3, 2009)