It is unlawful for any person to discharge any firearm in the City where there is reasonable likelihood of injury to humans, domestic animals or property except upon a rifle or pistol firing range which has been issued a business license by the City for such purpose; provided, that this prohibition does not apply to the discharge of firearms by law enforcement officers engaged in the performance of their official powers or duties. (Ord. 1261 § 1, 1985: Ord. 1244 § 4 (part), 1985).