NSW Police Deputy Commissioner Catherine Burn has denied any wrongdoing in relation to a police bugging scandal and has raised concerns about the possible release of a secret report into the affair during a parliamentary inquiry starting next week.

In a submission to the inquiry, published on Friday, Ms Burn also requests that if specific allegations are to be made against her that she be given "specific notice of what that conduct is alleged to be and what the allegations are".

The inquiry will examine NSW Ombudsman Bruce Barbour's two-year investigation of the bugging scandal, which has at its heart a 2003 internal police inquiry codenamed Strike Force Emblems.

Strike Force Emblems probed allegations of illegal bugging by NSW Police Special Crime and Internal Affairs (SCIA) and the NSW Crime Commission in 1999-2001, known as Operation Mascot, but its report has never been made public.

More than 100 police officers and a journalist were placed under surveillance during Operation Mascot after warrants were approved by the NSW Supreme Court.

But some of the affidavits presented to Supreme Court judges contained no information that would justify the surveillance, and some of their contents were false.

The contents of the Emblems report are particularly sensitive because NSW Police Commissioner Andrew Scipione and Ms Burn worked at SCIA and one of the detectives bugged was Deputy Commissioner Nick Kaldas.

Ms Burn had written to the committee asking that her submission to the inquiry remain secret, but suddenly dropped the request on Thursday.

In her submission Ms Burn says she has not read the Emblems report but refers to the recommendation of the Inspector of the Police Integrity Commission David Levine that it not be made public in a 2012 letter to then NSW police minister Mike Gallacher.

Ms Burn quotes Mr Levine's view that the report was "severely wanting in sound reasoning and logical exposition of investigations said to have been undertaken".

"In such circumstances, the credibility of the report must be low," she argues.

Ms Burn also issues a series of denials. They include:

• Denying that as head of Operation Mascot she instructed Internal Affairs officers to falsify evidence to a Supreme Court judge to obtain warrants to secretly bug police and others not suspected of any wrongdoing that would justify the warrant;
• Denying she knew Internal Affairs police "intended to fraudulently misrepresent that innocent police were suspected of committing indictable offences" in affidavits to secure the bugging warrants;
• Denying she directed Internal Affairs police "to use illegal warrants to secretly record conversations of my rivals in the police force", in particular Mr Kaldas, when she did not suspect him of wrongdoing; and
• Denying she directed use of illegal warrants to bug Mr Kaldas "as part of a personal vendetta" when she had no reason to suspect him of wrongdoing and that she was seeking to use secrecy laws to cover up her actions.

The parliamentary inquiry is due to begin hearings next Thursday.