Hearings under the Criminal Procedure and mentally Impaired Persons Act on Akuhata's fitness to stand trial will then likely be heard in the High Court on November 13, if time permits.
It was not mentioned in court where the assault took place but the Advocate understands it was while he was in custody at prison in Auckland.
The situation has led to a further delay in a trial date being set for the murder charge to be heard, frustrating Ashlee's mother Karen Edwards.
Mrs Edwards said each court appearance, and subsequent delay led to more anguish for her and the family.
"The delays are hard and lead to more anxiety for us, and there's been a lot for us. It just seems delay after delay," she said.
"But at the end of the day that's the way this thing goes and we just have to wait."
On July 23 about 50 family members and friends of Ashlee gathered at the bridge where her body was found to commemorate the first anniversary of her death. Among those carrying the strong anti family violence theme of the ceremony near the bridge were representatives from Whangarei Women's Refuge and a Ngati Hine organisation in which Ashlee was involved protecting young mothers from domestic violence.