 Realising Mick will never be able to pay the £20,000 fine ordered by the court, Shirley decides to put the blame on herself and she tells the police she knew Babe was breaching their licence but did nothing about it.She is subsequently charged with perverting the cause of justice.Although the Carters initially think that Shirley will only be in prison for six weeks, they are heartbroken to learn that her sentence has been doubled, meaning that she will stay in prison for three months.