The Independent Commission Against Corruption Investigates Disgraced Former NSW MP

An employee uses a magnifying glass to inspect a series of letters by Nobel Prize-winning physicist Albert Einstein at Winner's auction house in Jerusalem, on March 6, 2018 prior to being auctioned later in the night with the rest of a series of nine. / AFP PHOTO / MENAHEM KAHANA Photo credit should read MENAHEM KAHANA/AFP via Getty Images

Disgraced former MP Daryl Maguire will be investigated by the NSW corruption watchdog over a cash-for-influence scandal that forced his resignation from parliament.

The NSW Independent Commission Against Corruption said a formal public inquiry, expected to run for four weeks, would begin on September 21.