In this Act, unless the contrary intention appears:
"Australia" includes all the Territories.
"Commonwealth officer" means a person holding office under, or employed by, the Commonwealth and includes:
(a) a person appointed or engaged under the Public Service Act 1999 ;
(b) a person permanently or temporarily employed or serving in the Public Service of a Territory, or in, or in connection with, the Defence Force, or in the service of an authority or body constituted by or under an Act.
"constable" includes a member or special member of the Australian Federal Police or a member of the police force of a State or Territory.
"prohibited area" means a place, or an area, that is a prohibited area under section 7, 8 or 8A.
"restricted area" means an area that is a restricted area under section 14.
"special defence undertaking" means a work or undertaking that is a special defence undertaking under section 6 or 8A.