For the purposes of this Part, each of the following is an official person—
(a) the Secretary;
(b) the Commissioner for Youth Justice;
(c) a youth justice custodial officer;
(d) a youth justice community worker;
(e) a person employed or engaged in the Department for the purposes of the administration of this Act;
(f) a convenor of an early diversion group conference;
(g) a principal officer of a registered Aboriginal youth justice agency (including any person appointed to act as the principal officer);
(h) a prescribed person or body.