The Times reports that although the figures include extremism of different varieties, including far right, they show the hostility in Muslim communities towards the so-called Prevent programme, and raise concerns that police are being denied information that could prevent terror attacks.

Earlier this month, the Waltham Forest Council of Mosques, which represents tens of thousands of worshippers in east London, said was boycotting the scheme, while Muslim leaders in neighbouring Newham accused the scheme of “spying on our young people”.

The Prevent programme aims to identify individuals at risk of radicalisation and sends them to support schemes. An essential part of the programme involves people reporting friends and neighbours they believe to be showing signs of extremism.

However, the National Police Chiefs Council (NPCC) says that of 3,288 referrals in the first half of 2015, only 280 (8.6 per cent) were from local communities.