The murder case against Cy Walsh, son of former Adelaide Crows coach Phil Walsh, is set to return to the Supreme Court in Adelaide after concessions from prosecutors that he was mentally incompetent when he allegedly killed his father.
The 27-year-old has pleaded not guilty to the stabbing murder of his father at the family home in Adelaide on July 3, 2015.
While the court is yet to rule on his mental condition, director of public prosecutions Adam Kimber SC has indicated a finding of mental incompetence will not be opposed.
"The prosecution's position has been reached after reviewing all relevant material gathered by (South Australian police) in the course of its investigation, the reports of the forensic psychiatrists who have examined Cy Walsh and following consultation with relevant parties," Mr Kimber said in a statement last month.
The case is listed before Justice Anne Bampton for a hearing on Wednesday when a number of suppression orders will also be reviewed.
AAP