Jean-Claude Perrottet, as well as party powerbroker Christian Ellis and his mum, Hills Shire Councillor Virginia Ellis, were all called as witnesses to the inquiry three weeks ago but are yet to appear, leading the committee to hire private investigators to track the trio down.
The premier has labelled the investigation a “political smear job”.
Parliament was prorogued in 2011 by Kristina Kennealy’s then-Labor government ahead of that year’s state election, a move heavily criticised by the Liberals at the time.
