No person shall discharge, or aid or abet any other person to discharge, any firearm in the city, except in self-defense or incident to a lawful arrest unless the time, place, manner and extent of the discharge, and the kind or type of firearm used, and the article or material discharged therein, are in accordance with a permit issued by the Chief of Police which has not expired or been revoked. (Ord. 1881 § 2 (part), 1973).