A special educational needs school has been described as inadequate after an Ofsted inspection revealed children were locked in a secure 'chill-out' room against their will.
The revelations also include teachers at Derrymount school in Nottinghamshire defending the practice of detainment as a way to "protect pupils from themselves and others".
Stephanie Ince-Tivey, from Daybrook, says she was not surprised with what the inspectors' found.
Her 12-year-old son Tristan is autistic and she withdrew him from the school after an incident in April, which, she claims, saw him restrained by four adults.
She said: "It was devastating, you send him somewhere for him to be safe but they just clearly don't know how to deal with children, that they're specifically there to look after."
She described the chill-out room as "diabolical", adding: "It isn't a chill-out room, there was no way a child can relax in that room - it's a cell for putting in people when you cannot control them."
The Ofsted report also detailed how some pupils said that being placed in this room is very distressing.