From an Ofsted report on Darul Uloom Islamic High School in Birmingham:
Leaders and staff have had training in preventing extremism and radicalisation, and been given the latest Government safeguarding guidance.
However, the impact of this work has not rectified safeguarding weaknesses.
A large number of copies of a leaflet containing highly concerning and extremist views, such as ‘Music, dancing and singing are acts of devil and prohibited’, were discovered during the inspection.
The leaflets were found in areas shared by the school and adjoining mosque which are used by leaders and in areas used by the pupils from the school.
More details here.