A prominent insurance lawyer has accused the State Government's insurance arm of trying to intimidate and manipulate a woman whose car was hit by former treasurer Troy Buswell's ministerial vehicle.

Mr Buswell left a trail of damage when he smashed into four parked cars while driving home from a wedding in February.

The woman whose car was hit told Seven Network she was offered $3,000 by the Government's insurer RiskCover, but only if she did not speak to any media outlets and gave up all claims against the former treasurer.

Principal solicitor at the Insurance Law Service Kat Lane says the woman needs a lawyer.

"This is a situation where she should be having legal advice, and they're using the fact that she hasn't got a lawyer to intimidate her basically into signing confidentiality agreements," she told ABC Radio 720.

RiskCover says it does not discuss details of claims without permission but insurers often include provisions of confidentiality and legal action in settlement offers.

Ms Lane said confidentiality clauses were only usually used when both parties sought confidentiality.

"The interesting bit here is this is an uninsured motorist person whose car has been hit, and they're unrepresented by a lawyer," she said.

"Let's just stress that the vast majority of insurance disputes are settled on a non-confidential basis, this is very rare.

"They've taken a situation where she's unrepresented, has no legal advice and put terms to her... you're just sitting there with a pile of money and have no choice but to accept it.

"I would advise her not to sign that agreement. She can go to court and get this money without signing the agreement."

Opposition treasurer Ben Wyatt yesterday also accused the Government of using the confidentiality clause to cover up the way it handled the incident.

"By demanding from the victim a confidentiality clause, by demanding from the victim indemnity for Mr Buswell we see RiskCover acting as Mr Buswell's lawyer," he said.

"Acting not in the interest of the state, but merely in the interest of Troy Buswell's ongoing embarrassment over this issue."

Confidentiality claims 'not uncommon'

RiskCover chief executive Rod Whithear said it was not uncommon for confidentiality clauses to be included in contracts, but could not say if terms specifically prohibiting contact with the media were usually included.

He also revealed he spoke directly to the head of the Department of Premier and Cabinet, Peter Conran, about the insurer's handling of any claims flowing from the incident.

But he said it was not uncommon for Mr Conran to be involved in "sensitive claims".

"I recall a discussion with Peter Conran early on, who encouraged us to be diligent and thorough in our assessment of any claims as a result of this, we didn't need that advice, we would be diligent and thorough anyway," he said.

He said RiskCover were seeking more information from Mr Buswell after receiving a claim form signed by him in the end of May or early June.

The $15,000 repair bill to Mr Buswell's ministerial car was picked up by RiskCover, despite documents obtained by the under Opposition by Freedom of Information laws showing Mr Buswell initially did not sign an insurance claim form.

Mr Buswell resigned from Cabinet following revelations about the crashes.

A court fined him $3,000 and banned him from driving for 12 months after he pleaded guilty to 11 traffic charges.

He spoke publicly about his battle with mental illness on his return to Parliament.