Any police officer who arrests any person for possessing, using, lending, renting, giving, or transferring an air gun in violation of this article shall take custody of such air gun. Upon conviction of such person, the air gun so seized shall be forfeited to the city. Any air gun so forfeited shall remain in the custody of the police department for one year and thereafter destroyed; provided that such air gun shall be retained for subsequent proceedings, both civil or criminal, and until any such action is concluded, if any person desiring the use of such forfeited air gun as evidence files with the chief of police a written notice of an intention to so use the air gun before the destruction date herein provided.
(Sec. 13-19.5, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 41, Art. 8, § 41-8.5)