Byline: Gerri Peev Political Correspondent
SEX offenders will be given compulsory lie detector tests on release from jail in an effort to prevent future attacks.
Those who are found to be at high risk of carrying out further abuse will be recalled to prison or face a change of their parole conditions.
No10 wants mandatory tests for all high risk sex pests after a successful trial in the Midlands.
Probation officers hooked the offenders up to polygraphs while questioning them over their future movements and intentions.
The study found that the lie detector tests led to offenders being more honest with their probation officers.
They made twice as many disclosures to staff as those who were quizzed without the polygraphs. Their revelations included admitting to contacting a victim or entering an exclusion zone. Some confessed to fantasies, suggesting they would offend again.
Offenders also reported that the tests helped them to manage their own behaviour better.
The lie detector tests would be on top of other rigorous conditions that sex offenders face once they have served their prison sentences.
These include signing the sex offenders' register, restrictions on where they live and being banned from entering certain areas or coming into contact with potential victims.
A No10 source said: 'It's vital that we protect the public from serious sex offenders. …