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Page last updated at 08:16 GMT, Tuesday, 9 March 2010

Sex offenders list 'needs upgrade'

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Peter Chapman is beginning a life sentence for murdering 17-year-old Ashleigh Hall after befriending her on the internet, despite being known to police as a convicted sex offender.

Home affairs editor Mark Easton outlines the case, and Chris Huhne, home affairs spokesman for the Liberal Democrats, comments on how Chapman was able commit the murder.

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