A carpenter called to fix a door broken by a burglar was arrested by bungling police - after he left his DNA at the scene as he did his job.
Officers accused Jason Gaspard of breaking into the property after he was sent there by the owner to make it secure.
A forensic team found Mr Gaspard's blood at the house after he cut himself while fixing the door in Hove.
Officers arrested him and threw him in a cell before realising their mistake and letting him go.
Sussex Police has admitted it was wrong and has apologised to Mr Gaspard.
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