A secret police report has revealed gangland barrister Nicola Gobbo broke into the chambers of a fellow barrister and found documents she feared might expose her as an informer.

Key points: A 2007 report shows Nicola Gobbo was looking around the office of Sharon Cure, a defence barrister whose clients at the time included crime boss Carl Williams.

A 2007 report shows Nicola Gobbo was looking around the office of Sharon Cure, a defence barrister whose clients at the time included crime boss Carl Williams. The commission heard officers had concerns about Ms Gobbo's state of mind.

The commission heard officers had concerns about Ms Gobbo's state of mind. The commission was also told police paid for her tickets to a Lionel Ritchie concert.

The report, read out to the Lawyer X royal commission, is from June 25 2007 and was compiled by a police officer from the force's Source Development Unit who had day-to-day contact with Ms Gobbo.

"Ms Gobbo was looking around other counsel's offices yesterday, Saturday," the officer reports.

The "other counsel" is revealed as Sharon Cure, a defence barrister whose clients at the time included crime boss Carl Williams.

"Ms Gobbo says that when she was going through Ms Cure's office she found a list of phone records from Barwon Prison, obtained under subpoena, about (a prisoner) and the phone records detail daily contact with Ms Gobbo and Purana," the report said.

The discovery clearly caused Ms Gobbo great concern as the prisoner, a gangland supergrass, was her client and had implicated several associates in a series of murders.

"She's annoyed about this as she was reassured that these records could never be obtained and she says that she's now got no faith in the system when she sees things like this," the officer reports.

Parts of the reports were read out to a former senior officer from the Source Development Unit who is giving evidence under the pseudonym Sandy White.

Under questioning from Counsel Assisting the Commission Chris Winneke QC, Mr White said he had no memory of reading the report about the office break-in.

Counsel assisting the commissioner, Chris Winneke QC. ( Supplied: Royal Commission into the Management of Police Informants, file. )

Chris Winneke QC: Do you know what the elements of burglary are, the offence of burglary?

Sandy White: Yes, I do.

Chris Winneke QC: One would assume that it may well be, I mean who knows, but it may well be that Ms Gobbo has committed such an offence?

Sandy White: Yes, that's right.

Chris Winneke QC: The commission has an understanding that there was no authority for Ms Gobbo to break into or go into these chambers. Assuming that's the case it would be quite conceivable that Ms Gobbo had engaged in criminal conduct?

Sandy White: That's a possibility on the face of that entry, yes.

Concerns about Ms Gobbo's state of mind

The commission heard at about that time officers had concerns about Ms Gobbo's state of mind.

She had received a series of death threats over several years and had been offered the services of a psychologist.

At one point Ms Gobbo told police she should receive the sum of $5.3 million for all the information she'd given.

The inquiry heard Members of the Source Development Unit responded by taking her out for dinner and presenting her with a pen.

She later referred to the gift as the 'stinking pen'.

The commission was also told police paid for her tickets to a Lionel Ritchie concert.

The hearing continues.