Hollie Hughes, the Liberal party official who first rang alarm bells over the use of slush funds and illegal donations, could enter Parliament after being preselected for the NSW Liberals upper house ticket.

Former City of Sydney councillor Shayne Mallard, lobbyist Scott Farlow and Ms Hughes were preselected for the upper house positions on Saturday.

RE-ENDORSED: Veteran Wollongong MP Noreen Hays will again represent the Labor Party at the 2015 state election. Credit:Greg Totman

The Independent Commission Against Corruption heard that Ms Hughes questioned claims by the campaign manager for Wyong Liberal MP Darren Webber that she had raised $100,000 for the 2011 election, when official receipts showed $12,000 was raised.

Ms Hughes investigated the notorious slush fund Eight By Five, and urged the whistleblower Matthew Lusted to take his paperwork to Liberal Senator Bill Heffernan, who then informed ICAC.