A person has merit for an appointment or promotion to a rank in the Police Force if the person has the capacity to perform the duties of the rank, having regard to:
(a) the person's:
(i) knowledge, skills, qualifications and experience; and
(ii) aptitude, diligence, good conduct and quality of service; and
(iii) potential for future development in the Police Force; and
(b) any other matters the Commissioner reasonably considers relevant.