Jules Mikus, who killed six-year-old Teresa Cormack and is now seeking compensation for alleged historic abuse, has been ordered to undergo a psychiatric evaluation.
Mikus was convicted in 2002 of the 1987 rape and murder of the Napier schoolgirl.
He is one of hundreds seeking compensation from the Government over alleged historic abuse.
He has said the abuse happened in 1970s when he was at Porirua Hospital, in social welfare institutions and Salvation Army homes.
He is suing the attorney general, the Salvation Army and the Crown Health Financing Agency.
In April last year it became known Mikus had filed a claim. However the details of the case have been secret due to a court order.
A High Court judge has ordered Mikus to undergo a medical examination at the request of the defendants in the case, The Dominion Post newspaper reported today.
No date for the hearing has been set.