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
Ronnie Biggs Castro, was pregnant. Brazilian law at the time did not allow a parent of a Brazilian child to be extradited. During 1974, in Rio, Biggs, an avid jazz fan, collaborated with Bruce Henri (an American double bass player), Jaime Shields, and Aureo de Souza to record "Mailbag Blues", a musical narrative of his life that he intended to use as a movie soundtrack. This album was left undiscovered until it was finally released in 2004 by whatmusic.com. In April 1977 Biggs attended a cocktail party on board the Royal Navy frigate , which was in Rio for a courtesy visit,