[11] IBAC's Commissioner Stephen O’Bryan QC stated: "As with any new and complex legislation, it is not until it is applied in practice over time that areas for improvement are best identified.

I am confident that the IBAC Act provides a solid initial framework for Victoria's new integrity regime and that, as with any such legislation, it will transform over time.

Certainly, if elements of the Act fall short of what is needed to carry out most effectively its objectives and purposes, I have publicly stated that I will seek appropriate amendment.

[15] On 1 February 2015, the newly sworn in Labor Government announced it was undertaking a review of the Victorian integrity system, including changes to IBAC's powers.

[16] A string of investigations in 2015 renewed public support to bring forward changes to the IBAC Act,[17] with the government confirming its commitment to introduce a Bill to State Parliament in 2015.

After examining 14 witnesses under oath and reviewing more than 5500 documents Kellam produced a confidential report to IBAC in February 2015 finding a high order of negligence in the handling of human sources by Victoria Police.

[32][33] In July 2022, IBAC, in collaboration with the Victorian Ombudsman, handed down their final report of their investigation into allegations of misuse of electorate office and ministerial office staff and resources for branch stacking and other party-related activities by members of the Labor Party's Victorian branch.