In 1986, British police used DNA profiling for the first time in a criminal investigation to help solve two murders.

Geneticist Alec Jeffreys developed the technique, which compares patterns in DNA to help distinguish individuals.

In the case, DNA evidence cleared an initial suspect and later helped identify Colin Pitchfork, who was convicted of the murders of two teenage girls:
Lynda Mann and Dawn Ashworth, in Leicestershire, England.
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