Victoria's disability minister said he was horrified by revelations of a "desensitising box" at a Melbourne autism centre and has expanded a probe into one of the country's leading disability service providers.

Minister Martin Foley on Monday instructed the Department of Human Services to urgently inquire about the box as part of an examination of Aspect's Heatherton site, vowing to get to the bottom of the matter.

Thomas and his little sister Sarah have the same disability. They were both diagnosed with autism when they were four and attended the same early intervention service. But when it came time to start school, only Thomas qualified for disability funding. Sarah did not meet the criteria because she pronounced words too clearly, despite struggling to understand them.

Parents Paul Coleman and Annie Walton spent a year "jumping through hoops" to get an integration aid for Thomas, who is now 9.

The Tasmanian Government will investigate claims an autistic child was left isolated and unsupervised in a classroom for days on end.

Seika Purdy said she found her autistic daughter Jordan asleep, alone and unsupervised at a primary school in Tasmania's south last week.

Ms Purdy claimed it had been happening for about two weeks, after an incident of alleged bullying involving another student.

CHILDREN with disabilities are allegedly being locked in cages without windows and other enclosures described as “cattle pens” while at school.

Bendigo Special Developmental School is being investigated by the Victorian education department after incidents were reported by staff members and parents.

Since October last year, disability advocate Julie Phillips has copped a number of complaints about children being treated like animals.

THE family and friends of a Lockwood South man with severe autism have just nine days left until he is once again taken from their care.

Luke Modra, 27, has lived at the expansive property specially designed for his needs for several years, and in the last nine months has been under the direct care of eight support workers.

But on Saturday, his parents had to inform the workers they would no longer have a job on Monday after they were unsuccessful in convincing the Department of Health and Human Services to pay the casual wages.