Prime Minister John Key today confirmed Sammy Wong, the husband of former National MP Pansy Wong, is being investigated by the Auditor-General.
Mrs Wong announced her resignation from Parliament in December after admitting her husband was involved in a business deal on a taxpayer-subsidised trip they made to China in 2008, which is against parliamentary rules.
No other evidence of misuse was found but questions continued to be raised and Mrs Wong said National did not need the distraction.
Answering questions from Labour MP Trevor Mallard in Parliament today, Mr Key confirmed the Auditor-General was looking into Mr Wong.
"I was informally advised that the Audit Office was going to have a look at Sammy Wong some time ago," he said.
Mr Mallard then tabled a letter from fellow Labour MP Pete Hodgson to Auditor-General Lyn Provost requesting an investigation into Mr Wong, along with a response from the office saying it would proceed with an investigation.
NZPA