(a) 
Possession prohibited.
It shall be unlawful for a minor to possess aerosol paint or indelible marker of any sort or character.
(b) 
Affirmative defense.
It shall be an affirmative defense to a violation of the preceding paragraph that, at the time of possession, the minor was accompanied or supervised by a parent or guardian, a teacher in connection with a bona fide school project, a supervisor during the minor's regular employment, or that the minor possessed the aerosol paint on the property on which he lives or that the possession occurred as part of an organized event sponsored or supervised by the city, a school, a church or some other officially recognized entity.
(Code 1984, ch. 7, § 18(D))