Shoo-Fly

Shoo-Fly is American slang for a policeman, usually in plain clothes, detailed to watch and report on other policemen.
Found on http://www.probertencyclopaedia.com/browse/ZSA.HTM

Shoo-Fly

Shoo-Fly is American slang for a policeman, usually in plain clothes, detailed to watch and report on other policemen.
Found on http://www.probertencyclopaedia.com/browse/ZSA.HTM
No exact match found