Flying I'd assume, although they may have been in Quarantine when detected, or been politicians or hangers on. It's been kept pretty quiet.
Regards,
Tote
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My understanding it is not illegal to travel from Victoria to NSW as NSW does not have border restrictions. The issue is going back to Vic, crossing into the ACT or SA or Qld.
Can one freely cross the border, back and forth, by road, between Queensland and SA?