Edge of Darkness policy debate about energy and environmental issues. Advice on the policing aspects of the serial was provided by the West Yorkshire Police and former Scotland Yard detective Jack Slipper, famous for his pursuit of the train robber Ronnie Biggs. The musical score was provided by Eric Clapton and Michael Kamen. Clapton was approached to provide the score by producer Michael Wearing. Shortly afterwards, when Michael Kamen brought Clapton to a screening of "Brazil" (1985), which he, Kamen, had scored, Eric suggested a collaboration between the two on "Edge of Darkness". Kamen became one of Hollywood's most successful film composers, writing
Great Train Robbery (1963) the layout and operation of trains and carriages. Ultimately though, it was decided that it would be better to use an experienced train driver to move the locomotive and the first two carriages from the signals to the bridge after uncoupling the carriages containing the rest of the sorters and the ordinary mail. On the night, the gang's hired train driver (an acquaintance of Ronnie Biggs, later referred to as "Stan Agate" or "Peter") was unable to operate this newer type of locomotive; although having driven trains for many years (by then retired), he was experienced only on shunting (switching)