Greens call for Royal Commission: NSW development

The New South Wales Greens say new concerns about the ICAC investigation into Wollongong Council are valid, after comments by standover man Ray Younan.

Mr Younan has said he had sources inside the ICAC team, who leaked sensitive information to him before the scandal was made public.

Mr Younan is currently living in Lebanon after he failed to appear before the inquiry in February. A warrant for his arrest has been issued.

Greens MP Sylvia Hale says her party's concerns will not be alleviated until there is a Royal Commission into the development process both in Wollongong and across New South Wales.

"I think there's been a failure to follow up on the activities of a number of people who have been persons of interest in the community but whose ... involvement in corrupt activities has not been properly investigated or brought to light," she said.