The Public Counsel may receive a complaint from any person concerning an administrative act. The Public Counsel shall conduct a suitable investigation into the things complained of unless the Public Counsel believes that:

(1) The complainant has another remedy available which the complainant could reasonably be expected to use;

(2) The grievance pertains to a matter outside the Public Counsel's power;

(3) The complainant's interest is insufficiently related to the subject matter;

(4) The complaint is trivial, frivolous, vexatious, or not made in good faith;

(5) Other complaints are more worthy of attention;

(6) The Public Counsel's resources are insufficient for adequate investigation; or

(7) The complaint has been too long delayed to justify present examination of its merit.

The Public Counsel's declining to investigate a complaint shall not bar the Public Counsel from proceeding on the Public Counsel's own motion to inquire into related problems. After completing consideration of a complaint, whether or not it has been investigated, the Public Counsel shall suitably inform the complainant and the administrative agency involved.