Anjem Choudary, jailed for supporting Islamic State, was freed this month after serving half his sentence

The revamp of the government’s counterterrorism strategy, including the first compulsory deradicalisation programme, underscores official concerns at how to deal with the heightened terror threat.

A terrorist is being freed from prison at a rate of almost one a week, according to Home Office figures showing that 46 were released in the year to March.

A dossier last month revealed that at least 23 of the hate preacher Anjem Choudary’s acolytes have been released, with another five to become eligible for parole in the next year.

More than 500 terrorists have been freed in Britain since the 9/11 attacks in 2001, while Choudary himself was released this month halfway through his sentence for supporting Islamic State.

The preacher or his banned organisation al-Muhajiroun had connections