The Government's being urged to review a law that's designed to protect whistleblowers.

Nigel Murray's lawyers are arguing confidential statements made to the State Services Commission should be released.

The former Waikato DHB chief executive spent $120-thousand on travel and accommodation that was either unjustified or unauthorised.

Former Labour MP Sue Moroney says after a similar case at the Ministry of Transport last year, the State Services Commission urged the Government to review the Protected Disclosures Act.

"That has yet to happen, and I think that this case highlights, again, the urgency with which Government should undertake that review."

His lawyers are arguing that confidential statements made to the State Services Commission should be released.

Moroney says Nigel Murray's lawyer is going after unpublished information that was taken in confidence by the commission.

"It's incredibly important from the New Zealand public's point of view that public servants who are there looking after our money, have the right to talk in confidence to the state services commission in an investigation like this."

LISTEN ABOVE AS SUE MORONEY SPEAKS WITH TIM DOWER