4BC Mornings: Opposition Leader Tony Abbott has called for Prime Minister Julia Gillard to provide a "complete, open and transparent" account of her role in establishing a union slush fund 17 years ago.
Mr Abbott accused Ms Gillard of "stonewalling" in the face of repeated questioning over the fund.
Michael Smith talks with Greg Cary about the scandal. See more from Michael Smith at his website.
"I think all of us would be happy to give the prime minister the benefit of the doubt, but in order to do that she has to give us a full explanation and what we've had from the prime minister over the last several weeks is just a lot of stone walling," Mr Abbott told the Nine Network on Friday.
"What I'll be suggesting to the prime minister is, give us a full, complete, open and transparent account of these dealings and of your professional integrity as a solicitor."
Ms Gillard has consistently denied she did anything wrong or personally benefited from setting up the Australian Workers Union Workplace Reform Association for her then partner Bruce Wilson, while working as a lawyer in the 1990s.
Ms Gillard has, however, conceded the association was a slush fund that Wilson and other union officials used to fund their re-election campaign.
Mr Abbott noted Labor ministers had recently demanded Deputy Opposition Leader Julie Bishop answer questions over her conduct in her previous career as a lawyer.
"What's good for Julie Bishop is certainly good for Julia Gillard and in the end this goes to the prime minister's professionalism, integrity and truthfulness now because it's her answers now that I think people need to consider."
A former union official will tell police today about his involvement in a slush-fund linked to Prime Minister Julia Gillard.
Former Australian Workers Union official Ralph Blewitt will meet Victorian fraud squad detectives this morning - and give a detailed account of misappropriated funds.
Mr Blewitt has previously admitted he engaged in fraud with Ms Gillard's former boyfriend Bruce Wilson, who was then AWU Victorian secretary, by issuing bogus invoices and receiving hundreds of thousands of dollars during the 1990s.