Tracey Hayes has photos of her twin boys strapped to chairs at Monash Special Developmental School in Melbourne Other parents of autistic children have also made complaints about how their children have been treated in Victorian schools

Rebecca Cobb claims she was forced to pull her autistic son Tristan out of Marnebek school, in Cranbourne, because he was repeatedly locked in a small dark room

Mychelle Bourke says her son Mitchell was strapped to a chair and locked up at Golden Square Primary, in Bendigo.

Sharlene Gray claims her son Jason was locked up at Western Autistic School, in Laverton, and left ‘screaming for help’ at the age of nine.

The Victorian Department of Education and Early Childhood Development denies the allegations.

Disability campaigner Julie Phillips has started a petition demanding Victoria’s Premier Napthine stops the use of ‘restraint’ against children with disabilities