57 (1)
At an inquiry into a decision to refuse an applicant access to all or part of a record, it is up to the head of the public body to prove that the applicant has no right of access to the record or part.
(2) However, if the record or part that the applicant is refused access to contains personal information about a third party, it is up to the applicant to prove that disclosure of the information would not be an unreasonable invasion of the third party’s personal privacy.
(3) At an inquiry into a decision to give an applicant access to all or part of a record containing information that relates to a third party,
(a) in the case of personal information, it is up to the applicant to prove that disclosure of the information would not be an unreasonable invasion of the third party’s personal privacy, and
(b) in any other case, it is up to the third party to prove that the applicant has no right of access to the record or part.