The Wrong Arm of the Law
The crooks in London know how it works. No one carries guns and no one resists the police. Then a new gang appears that go one better. They dress as police and steal from the crooks. This upsets the natural order of the police/criminal relationship and the police and the crooks join forces to catch the IPOs (Impersonating Police Officers), including an armoured car robbery in which the police must help the gangs to set a trap.
Cast
Peter Sellers
Lionel Jeffries
Bernard Cribbins
Nanette Newman
Davy Kaye
Bill Kerr
Ed Devereaux
Reg Lye
John Le Mesurier
Graham Stark