463   Decision not to investigate a complaint

(1)  The Director-General may decide to take no action concerning a complaint (including a complaint referred to in section 464 (2)) if the Director-General considers that the complaint falls into any of the following categories:

(a)  the complaint is frivolous, vexatious or not made in good faith,

(b)  the subject-matter of the complaint is trivial or does not warrant investigation,

(c)  the subject-matter of the complaint has been or is under investigation by some other competent person or body or has been or is the subject of legal proceedings,

(d)  the complaint raises issues that require investigation by another person or body,

(e)  there is or was, in relation to the matter complained of, a satisfactory alternative means of dealing with the matter by the complainant,

(f)  the complaint relates to a matter that occurred more than 2 years before the complaint was made and the complainant does not have a sufficient reason for having delayed the making of the complaint,

(g)  the complainant has failed to provide further particulars of the complaint within the time specified by the Director-General.

(2)  If the Director-General decides to take no action concerning a complaint (including a complaint referred to in section 464 (2)), the Director-General must notify the complainant and give the reasons for the decision.