HOME Secretary Charles Clarke is facing a massive political fight to bring in controversial new measures to deal with dangerous criminals.
He will announce an emergency package today to protect the public from high-risk offenders.
The announcement comes on the day a court is due to sentence a known paedophile who repeatedly raped a nine-year-old girl despite being under community supervision.
The case is the latest in a series of high-profile failures involving the Home Office's supervision of offenders.
Mr Clarke is due to announce a new "dangerous persons order" designed to control the movements of violent offenders after they have left prison.
Harry Fletcher, assistant general secretary of probation union Napo, said: "An alternative route would be to invest in rehabilitation programmes in jails so that risk is reduced, and further advice given to the parole board to make sure that dangerous prisoners are not released on licence.
"It is essential that ministers stop blaming the under-resourced probation service when release decisions go wrong. No-one can reduce risk of reoffending to zero and politicians need to accept that' fact."