An investigation into the government's reforms of the probation service, which many critics say are putting the public at risk as well as failing offenders themselves. Reporter Daniel Foggo meets two women whose sons were murdered by offenders on probation following the reforms, which saw part of the service privatised. They believe that failures in supervision contributed to their sons' deaths. The programme also reveals evidence that offenders being supervised by one private company have missed thousands of appointments and no action was taken.