
The indictment was held at the bedside in Cairns Hospital because she was being treated for a stab injuries.
"There are eight charges, one charge for each victim," said Detective Inspector Bruno Asnicar told reporters.
Asnicar said the father of five victims have been informed.
He said police are investigating whether the drugs used in the tragedy.
"I want to clarify, I do not want to exclude the possibility of it. I will not discuss whether it is true or not," he said.
Asnicar said.the police had recorded 100 call witnesses and conduct an autopsy of the child including the eighth victim was a nephew of the accused and due to be completed later today.
The Bodies of the children were found last Friday, which shocked the whole country through grief in the aftermath of the siege and the killing of two hostages in a cafe in Sydney earlier this week.