ABORIGINAL children were injected with leprosy treatments in a medical testing program that used members of the Stolen Generation as guinea pigs, a Senate Committee has heard.

Greens Senator Bob Brown said he was "shocked and alarmed" by the claims, heard today by the Senate legal and constitutional committee's inquiry into a Stolen Generation Compensation Bill 2008.

On the first day of hearings in Darwin today, Kathleen Mills from the Stolen Generations Alliance said the public did not know the full extent of what happened to some children.

And efforts to obtain records that support the claims, such as that children were injected with serums to gauge their reaction to the medication, had been hampered, she said.

"These are the things that have not been spoken about," Ms Mills told the inquiry.

"As well as being taken away, they were used ... there are a lot of things that Australia does not know about."

Outside the inquiry, Ms Mills said her uncle had been a medical orderly at the Kahlin Compound in Darwin.

She said he told her that children were used as "guinea pigs" for leprosy treatments.

Full article here.