His new role as Special Minister of State requires him to raise and reform parliamentary standards.

However, federal MP Mal Brough is not yet free of his own damaging allegations that he broke the law in one of the murkiest episodes in Australian politics.

Mal Brough's interview with 60 Minutes was requested by the Australian Federal Police for use in their investigation of him. Credit:Channel Nine

Mr Brough is still under investigation by the Australian Federal Police for allegedly illegally procuring and distributing copies of disgraced former speaker Peter Slipper's diaries in 2012, 60 Minutes reported on Sunday night.

The investigation has been going for more than 12 months and the AFP recently requested interview tapes and other material from 60 Minutes, the report said.