References
- Wambaugh , Joseph . 1989 . The Blooding , New York : Bantam Press . DNA was not used directly to identify the criminal in the cases of the murders of Linda Mann and Dawn Ashworth. Over 4000 blood samples were taken from men living in the area. Colin Pitchfork persuaded a friend to give a sample in his place. The friend was indiscreet enough to let this be known. Pitchfork was arrested and convicted. For a full account see
- 2001 . Daily Telegraph, London , 3 February : i
- Terrell , R J . 1985 . World Criminal Justice Systems: A Survey , 52 Cincinnati : Anderson . 1985