52.   The ombudsman need not investigate any complaint if he determines that:

   a.   The complaint is trivial, frivolous, vexatious or not made in good faith;

   b.   The complaint has been too long delayed to justify present investigation;

   c.   The resources available, considering the established priorities, are insufficient for an adequate investigation; or

   d.   The matter complained of is not within the investigatory authority of the office.

   L.1998,c.21,s.52.