This legislation has been repealed.
Where, with the approval of the Inter-Governmental Committee, the Minister refers a matter to the Authority for investigation, then, except in a proceeding instituted by the Attorney-General of the Commonwealth or the Attorney-General of a State, any act or thing done by the Authority in pursuance of the reference shall not be challenged, reviewed, quashed or called in question in any court of the State on the ground that any necessary approval of the Inter-Governmental Committee or consent of the Commonwealth Minister has not been obtained or was not lawfully given.