(1) The Secretary, or the Chief of the Defence Force, (the appointer ) may, in writing, appoint any of the following as an inspector (a defence aviation area inspector ) for the purposes of this Part:
(a) an APS employee in the Department;
(b) a member of the Defence Force.
(2) The appointer must not appoint a person as a defence aviation area inspector unless the appointer is satisfied that the person has the knowledge, training or experience necessary to properly exercise the powers of a defence aviation area inspector.
(3) A defence aviation area inspector must, in exercising powers as such, comply with any directions of the appointer.
(4) If a direction is given under subsection (3) in writing, the direction is not a legislative instrument.