D.C. Code § 22-1406: False personation of police officer.

It shall be a misdemeanor, punishable by imprisonment in the District jail or penitentiary not exceeding 180 days, or by a fine not more than the amount set forth in § 22-3571.01, for any person, not a member of the police force, to falsely represent himself as being such member, with a fraudulent design.