Forfeiture of not less than $100.00 nor more than $500.00 may be adjudicated for each offense. All such substances may be seized by a peace officer and forfeited and, within 20 days after such seizures, may be libeled according to law. Cities or towns may make and enforce reasonable ordinances or bylaws not inconsistent with these rules.
16- 219 C.M.R. ch. 31, § 4