The following must be presumed unless a party to the proceeding, by reasonable notice, requires proof of it—
(a) the chief executive’s appointment;
(b) the chief health officer’s appointment;
(ba) a deputy chief health officer’s appointment;
(c) a health service chief executive’s appointment;
(d) an inspector’s appointment;
(e) an authorised person’s appointment;
(f) a security officer’s appointment;
(g) the authority of the following to do anything under this Act—(i) the Minister;(ii) the chief executive;(iii) the chief health officer;(iiia) a deputy chief health officer;(iv) a health service chief executive;(v) an inspector;(vi) an authorised person;(vii) a security officer.