(1) The Director may determine that a complaint does not warrant investigation—
(a) if in the Director's" "opinion—
(i) the subject-matter of the complaint is trivial; or
(ii) the complaint is frivolous or vexatious or is not made in good faith; or
(b) if the complainant had had knowledge for more than a year of the conduct complained of and fails to give a satisfactory explanation for the delay in making the complaint.
(2) Subject to subsection (4), the Director must refer a complaint warranting investigation to the Chief Commissioner.
(3) If the Director refers a complaint to the Chief Commissioner under subsection (2), the Chief Commissioner must investigate the complaint under Division 2 of Part IVA of the Police Regulation Act 1958 .
(4) The Director—
(a) must investigate a complaint if the conduct complained of is conduct of the Chief Commissioner or of a Deputy or Assistant Commissioner; and
(b) may investigate a complaint if the conduct complained of—
(i) is of such a nature that the Director considers that investigation of the complaint by the Director is in the public interest; or
(ii) is in accordance with established practices or procedures of Victoria Police and the Director considers that those practices or procedures should be reviewed.
(5) In a case to which subsection (4) applies, if the complaint was not first made to a member of Victoria Police, the Director may give the Chief Commissioner details of the complaint.
(6) The Director may attempt to resolve a complaint by conciliation and must—
(a) before commencing to conciliate, notify the Chief Commissioner of the proposed attempt; and
(b) notify the Chief Commissioner of the results of the attempt.