(1) The Premier may certify in writing that the disclosure of information about a specified matter, or the disclosure of any matter contained in a document, would be contrary to the public interest because it would involve the disclosure of deliberations of the Cabinet or a committee of the Cabinet.
(2) The Tribunal must ensure that—
(a) information or a document to which a certificate under subsection (1) applies that is lodged with or produced or given to the Tribunal in a proceeding for review of a decision is not disclosed to any person other than a member of the Tribunal as constituted for the purposes of the proceeding in which it was lodged, produced or given; and
(b) a document to which a certificate under subsection (1) applies that is lodged with or produced or given to the Tribunal in a proceeding for review of a decision is returned to the person by whom it was lodged, produced or given when no longer required by the Tribunal.