Andy Burnham has bowed to huge public pressure to keep the killers of PC Andrew Harper behind bars. The Prime Minister said today he is 'increasingly confident' that further changes can be made to Labour's early release scheme to keep Jessie Cole and Albert Bowers in prison. 'I am doing all I can, but it is simply not possible to prevent all offenders from being released early without the prison system collapsing.' Probation officers back strike action in protest against early release scheme Probation officers have voted overwhelmingly in favour of potential strike action in protest against the early release of prisoners. 'We warned that Labour's early release scheme would see rapists let out early - but they legislated anyway,' he added.