Shortly after 7:30 p.m. last night, police responded to the area of Queen Street in Chatham in regards to a suspicious person.
Officers found the man with his pants down pleasuring himself.
As the man was placed under arrest, police say he pushed the officer in an attempt to resist arrest and refused to comply.
The man was taken into custody and upon being searched, was found to be in possession of methamphetamine.
A 29-year-old man of no fixed address has been charged with committing an indecent act, resisting arrest and drug possession.