Other mistake: During the hold up when Medhurst is sprung from the police van, the breakdown truck used to pull the doors of the van reverses towards the police van twice after releasing the chains off the doors before driving away, and the camera lights are reflected in the side of the white getaway car.
Continuity mistake: When the squad are following Don on the motorbike in their white Ford Cortina they turn outside a shop called "Chelsea Typewriters". In the shots taken inside the car there is a white Riley parked between the red Fiat and silver Datsun, but in exterior shots there is a space where the Riley is parked.
Continuity mistake: The first scene when Steven and Arlene are in the office you can see a major road through the windows behind them. When the camera is on them in alternate shots the vehicles seen on the road in the first shots should been seen when the angle changes but are not.
Continuity mistake: In the final scene, when Regan is mixing a drink while on the phone to Carter, he opens the fridge and pulls a green bottle out and puts it on the worktop. The scene cuts back to Carter, but when it cuts back to Regan the bottle has disappeared and Regan is pulling ice cubes out of an ice bucket that wasn't there before. Also another green bottle on the worktop has moved away from the wall.
Continuity mistake: When Regan arrives at the block of flats to speak to Biggleswade's parents, the squad car parks between a blue Ford Cortina and a white Fiat 128 parked a distance behind. In the next shot from the flats walkway looking down the white Fiat is parked right behind the squad car.
Continuity mistake: In the final scene Regan hails a taxi as it pulls in the taxi is passed by a green Jaguar and a yellow Ford Transit.When the angle changes, these two vehicles should pass by, but they don't.Then when the taxi turns round and drives off, the vehicles in front of it should have been seen in the previous angle but they weren't.