Former Victorian Labor powerbroker Adem Somyurek says it is "touch and go" if his motion to launch a new probe into the party's red shirts scandal will pass parliament.
Almost four years ago, Labor was found to have misused $388,000 of taxpayer money to pay political campaign staff before the 2014 election after an investigation by Victorian Ombudsman Deborah Glass.
The rort involved 21 past and present Labor MPs breaching parliamentary guidelines by diverting staff to help campaign for members, but no criminal charges were laid following a separate probe by Victoria Police.
Labor paid back the money used in the scheme.
Mr Somyurek wants the Independent Broad-based Anti-corruption Commission to establish a fresh investigation into the affair and will move a motion on Wednesday.
"It's touch and go," he told AAP, when asked whether he had the numbers.
The motion calls on the watchdog to again investigate the 2014 scandal and specifically Premier Daniel Andrews' role in it if any, by tacking it on to their current joint investigation with Ms Glass into Labor branch stacking.
Mr Somyurek was accused of being a key player in the branch-stacking scheme, which resulted in him resigning from the party.
Branch stacking is the systemic payment of other people's memberships to influence election candidate preselection, which is not illegal but against Labor rules.
The motion also wants the watchdog to probe into Mr Andrews' social media staff, Labor-linked appointments in the public service and the role of lobbyists in party politics.
Mr Andrews declined to comment when asked about the motion specifically referring to him and his staff.
"I've got no response to that person. I'm just not getting into a debate with him about anything," he told reporters on Wednesday.
The Victorian opposition has committed to support Mr Somyurek but he will still need the vote of at least nine other crossbenchers for the motion to pass.
Liberal Democrat MPs David Limbrick and Tim Quilty, Justice Party MPs Stuart Grimley and Tania Maxwell and Sustainable Australia MP Clifford Hayes have flagged their support.
"Not because I want to prosecute the Labor Party or bring the red shirts affair back up over and over - I'm concerned about the misuse of public funds," Mr Hayes said.
Victorian Greens leader Samantha Ratnam, Animal Justice MP Andy Meddick and Reason Party MP Fiona Patten will not back the motion.
Ms Patten said Mr Somyurek's motives were "attention-seeking" and she may have considered voting for it if another crossbencher had put up the motion.
"Given that we are talking about Mr Somyurek, who has made wild allegations, has ignored and disrespected this parliament and this chamber for nearly two years, to now seek the support of the chamber is asking too much," she said.
