The Inspector of the Independent Commission Against Corruption, David Levine, is to complete a review of the watchdog's powers despite Premier Mike Baird already receiving the report of an expert panel in July.

Inspector Levine, who on Friday delivered a scathing assessment of the ICAC's aborted pursuit of crown prosecutor Margaret Cunneen, is expected to deliver his report early next year.

David Levine, the Inspector of the Independent Commission Against Corruption. Credit:Daniel Munoz

It will include an assessment of the ICAC's exercise of jurisdiction in relevant past and current investigations; whether the ICAC's powers are consistent with justice and fairness; and the extent to which the ICAC's investigations have led to prosecutions and convictions.

The report will be referred to the parliamentary oversight committee for the ICAC for its recommendations, along with Friday's report into the Cunneen investigation, codenamed Operation Hale.