Islamic extremism is infesting British prisons, and often goes unchallenged thanks to a culture of political correctness, a Government report has warned.

A review of prison extremism for the Ministry of Justice was concluded that “cultural sensitivity” and “fear of being labelled racist” led to a soft-touch approach when dealing with potential extremists.

It will fuel fears that Britain’s prisons are functioning as an incubator for radical terrorism by putting large numbers of would-be radicals together in one place.

The document, partially published today, said prison supervisors would often leave the room during group prayers – providing a forum for radicalization – because of cultural pressure.

They would at times also succumb to demands not to search prisoners who claimed they were protected by their “religious dress”.

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