The title and closing sequences were recorded around the Westway urban motorway in inner West London, and the maps shown on the walls of the police station offices are of north Kensington. The slow panning camera in the closing sequence was on the top of Hermes Point, a 20-storey tower block on Chippenham Road, London W9 which later became notorious in a political scandal involving the local council placing homeless families despite knowing it had free asbestos which was a health risk.