The Court of Appeal has dismissed an application by one of two boys convicted of the murder of schoolgirl Ana Kriégel to introduce fresh evidence at his appeal against his conviction.
Lawyers for the boy, known as 'Boy B', claimed garda interviews were inadequate and inappropriate and should not have been admitted at his trial in 2019.
They wanted new reports by two forensic psychologists to be considered by the Appeal Court.
But the court refused the application saying it came nowhere near the threshold required.
Giving the court's judgment, the Appeal Court President Mr Justice George Birmingham said no issues about the voluntariness of the interviews of the boy by gardaí had been raised at his trial and still had not been raised by him.
The boy's position was that he had told lies at the beginning, but that in his last interview, he told the true picture and that he was an observer and an eye witness but not a participant in the murder.
The judge said the two experts had never met the boy.
He said the boy's new lawyers were seeking to "set at naught" the way the original trial had been run on his behalf and run an entirely different case.
He said it was a "radical" request to seek to submit new evidence.
He said the court was entirely in agreement with the DPP and the application was nowhere near the threshold required to allow new evidence to be adduced in an appeal.
A date of 5 October has been set for a hearing of Boy B's full appeal against his conviction.
Boy B was 13 when he lured 14-year-old Ana Kriégel to a derelict house in St Catherine’s Park in Lucan, where he watched as his friend beat her to death and sexually assaulted her.
He was interviewed by gardaí eight times in total, during which he lied and changed his story repeatedly.