(1) Subject to the provisions of this section and sections 113 and 114, the principal function of the Parliamentary Commissioner shall be to investigate any decision or recommendation made, including any advice given or recommendation made to a Minister, or any act done or omitted by any department of government or any other authority to which this section applies, or by officers or members of such a department or authority, being action taken in exercise of the administrative functions of that department or authority.
(2) The Parliamentary Commissioner shall be provided with a staff adequate for the efficient discharge of his or her functions and the offices of the members of his or her staff shall be public offices.
(3) The Parliamentary Commissioner may investigate any such matter in any of the following circumstances—
(a) where a complaint is duly made to the Commissioner by any person alleging that the complainant has sustained an injustice as a result of a fault in administration;
(b) where a Senator or a member of the House requests the Commissioner to investigate the matter on the ground that a person or body of persons specified in the request has or may have sustained such injustice; and
© in any other circumstances in which the Commissioner considers that he or she ought to investigate the matter on the ground that some person or body of persons has or may have sustained such injustice.
(4) The authorities other than departments of government to which this section applies are—
(a) local authorities or other bodies established for purposes of the public service or of local government;
(b) authorities or bodies the majority of whose members are appointed by the Governor General or by a Minister or whose revenues consist wholly or mainly of moneys provided out of public funds;
© any authority empowered to determine the person with whom any contract shall be entered into by or on behalf of the Government; and
(d) such other authorities as may be prescribed by Parliament.