Using DNA spray to catch thieves

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DNA mist is being used to nab thieves in Rotterdam (Photo: Paul Keller)

Reporter Clark Boyd tells us that businesses in Britain, Holland and Belgium are using a fine mist laced with synthetic DNA to spray thieves and shoplifters. When the police catch a suspect, all they need is an ultraviolet light and a cotton swab to begin their investigation.Download MP3

• DNA spray SelectaMARK