This rule applies when the Commission makes its decision on an appeal.

The Commission must record its decision and the reasons for it.

Subject to rule 29, the Commission must serve on the parties and any special advocate a written determination containing its decision and, if and to the extent that it is possible to do so without disclosing information contrary to the public interest, the reasons for it.

Where the determination does not include the full particulars of the reasons for its decision, the Commission must serve on the Secretary of State and the special advocate a separate determination including those particulars.

Where the Commission serves a separate determination under paragraph (4), the special advocate may apply to the Commission to amend that determination and the determination under paragraph (3) on the grounds that the separate determination contains material the disclosure of which would not be contrary to the public interest.

The special advocate must serve a copy of an application under paragraph (5) on the Secretary of State.

The Commission must give the special advocate and the Secretary of State an opportunity to make representations and may determine the application with or without a hearing.