Shot of Professor Alec Jeffreys who first developed DNA testing sitting at his desk. Colour still of Colin Pitchfork who was convicted of murder in 1987 with DNA evidence. Side by side stills of his victims Dawn Ashworth and Lynda Mann. Library shots of volunteers being tested during the Pitchfork hunt. Refinements to the system now mean that computers can be used to store DNA data leading to the possibility of a UK DNA database. Interview with Professor Alec Jeffreys of Leicester University who talked about the uses of the system and about establishing a DNA database. Shots of DNA laboratory work including technician using a computer.
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