Labor is pushing for another Senate inquiry into the European au pairs affair engulfing Peter Dutton, as the home affairs minister stokes a public feud with his former border force boss.
Ex-Australian Border Force commissioner Roman Quaedvlieg submitted a letter to a Senate committee after Wednesday's initial inquiry, alleging Mr Dutton's chief of staff Craig Maclachlan called him asking for help in June 2015.
Mr Dutton has labelled the letter as "entirely false and indeed fabricated".
Labor Senator Murray Watt believes another public hearing is needed to get to the bottom of the saga.
"These latest revelations and contradictory evidence mean we do need to have another hearing," he told ABC radio on Friday.
"It's very typical of Peter Dutton, when he's under pressure, to start throwing mud at other people."
Labor Senator Murray Watt reacts during a Senate Inquiry at Parliament House in Canberra, Wednesday, September 5
AAP
Senior government minister Mathias Cormann said the ex-ABF chief's allegations contained major factual inaccuracies.
"Mr Quaedvlieg is obviously not a credible witness here," Senator Cormann told Sky News.
In the letter, Mr Quaedvlieg said Mr Maclachlan told him "the boss' mate in Brisbane" had a problem with a prospective au pair who had been detained at the airport.
But Mr Dutton said Mr Maclachlan didn't work for him until October 2015.
Mr Quaedvlieg rejected the claim he fabricated evidence, indicating he would reconcile the "anomaly" in dates and didn't intend to debate facts through the media.
