About 5.20pm last Tuesday (January 8) police allegedly spotted a 31-year-old Murwillumbah man on a wharf on Tumbulgum Road, lying down with his pants around his ankles masturbating.
The man was searched and police allegedly seized methylamphetamine (ice).
The man was arrested and taken to Tweed Heads Police Station where he was charged with wilful and obscene exposure and possessing a prohibited drug.
He was bailed to appear before Murwillumbah Local Court on January 29.