Keegan said this report would be completed before Thompson's next court appearance scheduled for early May and indicated a plea change might occur at that point.
Keegan said the private report would cover any issues regarding his client's fitness to plead as well as make an assessment of Thompson's mental state at the time of the alleged offending.
Clarke argued should any mental health issues become apparent, two reports would be required anyway and pointed out she could find no examples in case law where a request for a court ordered psychiatric interview be declined in favour of a private report.
Justice Robert Dobson, who was presiding, ordered the mental health report be carried out as per the Crown's application, saying he noted Keegan's concerns in his decision.
Justice Dobson also pointed out the likelihood of any statements made by Thompson to the court ordered specialist being inadmissible in the event of a trial.
Thompson, 68, was remanded into custody until his next appearance on May 1.