Staff were filmed hitting and kicking pupils at a special school and leaving them in their urine, the BBC has found.

Despite the school proving abuse in so-called “calming rooms”, some staff are still employed there and have not been barred from working with children.

Parents say they have not been allowed to see the footage and were misled about the use of isolation.

Pupils were left alone in the rooms for up to four hours, with footage showing them naked, sitting in urine and eating crumbs off the floor

Children were “slammed”, kicked and hit with force “without obvious justification”, while rhino pads - often used in rugby training - were deployed to push pupils inside

The HR consultant identified more than 20 CCTV clips of excessive force and records of police notes described possible assaults - but despite this the Crown Prosecution Service did not recommend prosecutions

A whistleblower who worked at the school describes what they saw on CCTV as “torture” - and says the rooms were worse than cells