Government Information (Public Access) Act 2009 No 52
9 Access applications
(1) A person who makes an access application for government information has a legally enforceable right to be provided with access to the information in accordance with Part 4 (Access applications) unless there is an overriding public interest against disclosure of the information.
(2) An agency is not subject to the direction or control of any Minister in the exercise of the agency’s functions in dealing with a particular access application.
(3) The function of making a reviewable decision in connection with an access application made to an agency may only be exercised by or with the authority (given either generally or in a particular case) of the principal officer of the agency.