The UK has a variety of problems with its prison system, amongst them is how it copes with increasing numbers of prisoners who are Muslim or have been converted and the threat from radicalization - which ends in Islamism.

Ian Acheson was asked to conduct a review in 2015; the linked article summarizes his experience and he is very critical:https://www.spectator.co.uk/2017/04/...n-our-prisons/

The actual report is not in the public domain, but there is this official summary:https://www.gov.uk/government/public...-youth-justice

There are a growing number of convicted Islamist terrorists in UK prisons (mainly in England), not all of them are held in 'high security' prisons.

Just how this issue has been effectively ignored, so becoming a real threat inside prison, let alone when prisoners "return to the community" undermines the UK's strategy.