``All offenders convicted of preparing or committing a terrorist act will face a minimum of 14 years in jail, more than four times the present three years - and the current rule allowing release of serious terrorists two-thirds of the way through the sentence will be abolished.
They will also face tougher controls on release including lie detector tests that could help prevent a repeat of the London Bridge terror attack where killer Usman Khan is thought to have conned police and probation into thinking he had reformed.``
