DOCUMENTARY
Cold Case Forensics: The Murder of Rachel Nickell
ITV1, 9pm
The brutal 1992 killing of Rachel Nickell on Wimbledon Common is not a subject left alone for long by television; most recently, Channel 4’s Deceit scrutinised the police’s botched honey trap operation that incorrectly identified Colin Stagg as the killer. This absorbing film looks at the case through the eyes of Dr Angela Gallop, whose forensics team finally cracked the case some 15 years later in spite of shoddy police work having seen few DNA samples retained.