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;
(c) a network 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;
(iv) a network chief executive;
(v) an inspector;
(vi) an authorised person;
(vii) a security officer.