(1) Subject to this section, in proceedings under this Part, the Tribunal has power, in addition to any other power, to review any decision that has been made by an agency or Minister in respect of the request and to decide any matter in relation to the request that, under this Act, could have been or could be decided by an agency or Minister, and any decision of the Tribunal under this section has the same effect as a decision of the agency or Minister.
(2) Where, in proceedings under this Act, it is established that a document is an exempt document, the Tribunal does not have power to decide that access to the document, so far as it contains exempt matter, is to be granted.
(6) The powers of the Tribunal under this section extend to matters relating to charges payable under this Act in relation to a request.