Haw. Rev. Stat. § 96-8: Appropriate subjects for investigation.

An appropriate subject for investigation is an administrative act of an agency which might be:

(1) Contrary to law;

(2) Unreasonable, unfair, oppressive, or unnecessarily discriminatory, even though in accordance with law;

(3) Based on a mistake of fact;

(4) Based on improper or irrelevant grounds;

(5) Unaccompanied by an adequate statement of reasons;

(6) Performed in an inefficient manner; or

(7) Otherwise erroneous.

The ombudsman may investigate to find an appropriate remedy.