No person, except a police officer or other peace officer, shall bring into or have in his possession in any park, any firearms, slingshots, firecrackers, missile propelling instruments, air rifles, air pistols, paintball guns, or explosives, including any substance, compound, or mixture having properties or such a character that alone or in combination with other substances, compounds, mixtures, propel missiles, explode or decompose to produce flames, combustion, noise, or noxious or dangerous odors, except as specifically permitted by ParksCorp or BPCA. Nothing in this section shall be construed to prohibit the proper use of matches or of charcoal lighter fluid in proper containers in picnic grills where permissible pursuant to the provisions of these rules.