Forensic Science is a Documentary programme.
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Forensic science has come a long way since the invention of the fingerprint.
Today's detectives have computers, calorimeters, chromatographs and DNA analysis to help them catch some of the most careful criminals.
Discover how the slightest trace of evidence - a hair, a smudge, a bullet or a burn - can develop a gold mine of incriminating data.
Database last updated: 25 July - 19:45