An angry mum plans to sue a council claiming her daughter's face was left bruised and swollen after she was restrained by school teachers.

Claire Nossiter says her daughter Lyndsay was “routinely restrained” in her years at Bothwellpark High in Motherwell, Scotland, which caters for pupils with additional support needs.

Lyndsay, who has Prader Willi Syndrome and autism, "kicked off" one day and had so many bruises afterwards she looked like she had been in a car crash, her mum claims.

Claire waited four years for the conclusion of council and police inquiries into the injuries to her daughter, now 20.

She was disappointed to learn that two teachers charged over the incident would not be prosecuted, and plans to take legal action against the council, the Daily Record reports.

Claire said Lyndsay was brought home from school with a face so badly bruised and swollen in March 2014 that a consultant feared her jaw was broken.

The mum said: “I’d had a call from school saying Lyndsay had ‘kicked off’ and been restrained and had a small bruise on her cheek. I couldn’t believe the state of her.

“There were bruises all over her body. She looked like she’d been in a car crash not at school.”

North Lanarkshire Council found staff acted appropriately.