(Source)
under a proposed change, officers from Australia's foreign intelligence services, ASIS and the DSD, would be allowed to monitor Australian citizens overseas if an ASIO officer was not available.
ASIO, whose main role is to monitor people in Australia - mainly citizens - who may present a security threat, has a specific legislative framework which was created to protect people's rights. Australians monitored by ASIS or DSD would presumably not have access to similar protections. (Source)
Once people get their head around this stuff it will be very interesting to see what their reaction will be.