Fifty police chiefs have signed a letter urging Prime Minister Andy Burnham to explore all the legal options to prevent PC Andrew Harper's killers from being released early.

Harper was killed in 2019, when he was dragged behind the getaway car of three teenagers who had fled the scene of a quad bike theft in Berkshire.

Under changes to the Sentencing Act made this year, Jessie Cole and Albert Bowers - who were sentenced to 13 years for manslaughter - will be eligible for release from custody after serving half of their sentences.

UK correspondent Enda Brady says Burnham's looking to ensure these changes no longer apply to people with manslaughter convictions.

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