StellarX notes:
With a title taken from the Cockney rhyming-slang for the Flying Squad ("Sweeney Todd"), Thames Television's tough TV cop drama starred John Thaw (later the eponymous "Inspector Morse") as Detective Inspector Jack Regan — and Dennis Waterman (subsequently Terry McCann in "Minder") as sidekick Detective-Sergeant George Carter. Regan can be seen on the top row wearing a brown jacket and grey pants; Carter is shown kneeling, wearing a white shirt, towards the centre of the sheet.
Ian (who is Australian) also noted that the value of meat in 70s Britain must have been absolutely shocking.