Right to Information Act 2009

On an external review—

the procedure to be followed is, subject to this Act, within the discretion of the information commissioner; and

proceedings must be conducted with as little formality and technicality, and with as much expedition, as the requirements of this Act and a proper consideration of the matters before the commissioner allow; and

the commissioner is not bound by the rules of evidence and may inform themself on any matter in any way the commissioner considers appropriate.

The commissioner may, during an external review, give directions as to the procedure to be followed on the external review.