112 Better reasons
(1) This section applies if—
(a) an application is made for external review of a decision of an agency or a Minister; and
(b) the information commissioner considers that the reasons for the decision stated in the prescribed notice for the decision are not adequate.
(2) The commissioner may require the agency or Minister to give the applicant for external review and the commissioner an additional statement, as soon as practicable, but in any case within 20 business days, containing further and better particulars of the reasons for the decision.