A dangerous predator once labelled Britain's worst sex offender could soon be back on the streets. A review of Kevin Lakeman's case by the Parole Board allowed him to have his hearing held in private. An expert ruled that a public hearing 'may increase stress and anxiety to Mr Lakeman' despite the concerns of his victims about his possible release. Lakeman, now 63, of Sunderland, was jailed for life for three rapes and attempted rape in April 1995, with a minimum term of 12 years. But his case