297Revocation of authorisation

297  Revocation of authorisation  (1) Subject to section 298 (which applies in relation to third party authorised officers), the Secretary may, at any time, revoke the authorisation of a person as an authorised officer (including a person in relation to whom a suspension is in effect under section 296 or 298C) by notice in writing given to the person. Note: A decision under this subsection in relation to a third party authorised officer is a reviewable decision (see Part 2 of Chapter 11).  (2) If the person was given a notice (a show cause notice) under subsection 298(3) that included the request referred to in paragraph 298(3)(b), the revocation must not take effect before the earlier of the following: