Why is John Worboys being released after less than 10 years?

Police fear there may have been 100 victims of John Worboys.The Parole Board decision to recommend the serial sex attacker John Worboys for release has provoked outrage and criticism across the political spectrum.Worboys, one of the UK’s most persistent sexual offenders, has served just under 10 years in prison, including time he spent on remand before his conviction for attacks on 12 women involving rape, assaults and drugging.