(1) If a network activity warrant was issued in response to an application by the chief officer of the Australian Federal Police or the Australian Crime Commission, the chief officer may apply, at any time before the expiry of the warrant:
(a) for an extension of the warrant for a period of no more than 90 days after the day the warrant would otherwise expire; or
(b) for a variation of any of the other terms of the warrant.
(2) The application is to be made to an eligible Judge or to a nominated ART member and must be accompanied by the original warrant.
(3) Sections 27KK and 27KL apply, with any necessary changes, to an application under this section as if it were an application for the warrant.
(4) The eligible Judge or nominated ART member may grant an application if satisfied that the matters referred to in subsection 27KM(1) still exist, having regard to the matters in subsection 27KM(2).
(5) If the eligible Judge or nominated ART member grants the application, the eligible Judge or nominated ART member must endorse the new expiry date or the other varied term on the original warrant.
(6) An application may be made under this section more than once.
(7) If a network activity warrant is extended or varied in response to an application made by the chief officer of the Australian Federal Police or the Australian Crime Commission, the chief officer must:
(a) notify the extension or variation to the Inspector - General of Intelligence and Security; and
(b) do so within 7 days after the extension or variation.