Lives ruined by the post office's decision to blame their staff rather than question their software. and victims are now demanding justice. there are calls for an independent investigation into bullying and sexism at avon and somerset police. a whistleblower has shown the bbc details of toxic abuse he says he suffered during the eight years he worked with the force. from bristol, charlotte callen reports. avon and somerset police. they say they are a caring and inclusive force. but a former investigator, who we are not naming to protect him, was subject to what has been described as toxic and ...