Watch Series: Code of a Killer Released in (2015) - Season 1 produced by UK, The TV Series categorized in Crime, Drama, Mystery, and content rating 14 with duration 90 min broadcasted as these networks ITV1, ITV, Streamed at Putlocker & directed by James Strong. Based on the extraordinary true story of Alec Jeffreys' discovery of DNA fingerprinting and its first use by Detective Chief Superintendent David Baker in catching a double murderer. - Season 1