Western Australian Consolidated Acts (1) If asked by the
occupier or a person in charge of the premises, the person executing a warrant
must produce it for inspection.
(2) A warrant ceases
to have effect —
(a) at
the end of the period of one month after its issue;
(b) if
it is withdrawn by the magistrate who issued it; or
(c) when
it is executed,
whichever occurs
first.