Zachary Rolfe, 29, is accused of murdering Kumanjayi Walker, who was shot three times in the remote community of Yuendumu in November 2019, as officers tried to arrest the 19-year-old.

Defence lawyer David Edwardson QC was scathing of the NT Police Force and Commissioner Jamie Chalker over the handling of reports prepared for the coroner following Mr Walker's death.

The so-called Pollock reports contained information about the shooting, Rolfe's service and training and an opinion on two expert reports that now form part of the prosecution brief against the officer.

Mr Edwardson said they'd been prepared by a highly respected senior NT police officer named Scott Pollock and detailed why the expert opinions were "misconceived, ill-informed and wrong".

"They are reports that were buried, not disclosed, did not form part of the prosecution brief, were patently disclosable," he told the NT Supreme Court Friday.

"There was an attempt made as you saw evident in the documents produced by an assistant commissioner to not disclose them to the defence and put it off until after the criminal prosecution had proceeded."

Mr Edwardson said Assistant Commissioner Nick Anticich was "ultimately the person who stopped the progression of that report because it was inconsistent with the case that they wanted to present."

He also accused Mr Chalker of denying the existence of the reports and resisting handing them over on the basis the defence would not be able to demonstrate a legitimate forensic purpose.

Mr Chalker's lawyer, Mary Chalmers, said assertions her client had attempted to block the release of the reports was wrong.

"I do wish to correct the record, particularly given some of the more emotive statements that have been made ... to the effect the commissioner has been attempting to hide information," she said.

"That's simply not the case."

Ms Chalmers said the allegation that Mr Anticich attempted to stop the reports being passed to the Rolfe's defence was a matter of interpretation.

"But the assertion is refuted to the extent that there is a suggestion that something nefarious has gone on," she said.

Redacted versions of the reports were ultimately handed to Mr Edmondson after a subpoena was issued.

The parties are now arguing over the extent of that redaction, which has been made on the basis of legal professional privilege.

Acting Justice Dean Mildren will hand down his judgment on the report's contents and their redaction at a future date.

Rolfe's trial is expected to start in July and run for four weeks in Darwin, about 1500 kilometres from Yuendumu, which has a population of about 800 people.

Australian Associated Press