Page last updated at 10:40 GMT, Wednesday, 9 September 2009 11:40 UK

DNA fingerprint inventor shocked by impact of discovery

The man who invented DNA fingerprinting a quarter of a century ago, Professor Sir Alec Jeffreys, explains how at the time he thought his discovery would be rarely used.

Watch the Newsnight film on 25 years of DNA fingerprinting on Wednesday 9 September 2009 at 10.30pm on BBC Two.

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