I imagine it's probably a bit tricky to extradite a sitting member of the federal Parliament...
(Sorry to be pedantic. ;) )
Sorry to pile on, but as an aside, in the Senate it's all red, and in the House of Representatives it's Royal Red. In Australia, exit signs are green - everywhere except in the senate, which apparently amended legislation to my the sign red.
Given their preference for red, however, one wonders why there are so many of The Greens in the Senate.
Speaking of taking undue care, I always ensure I double check the word "pedantry" when typing it into a text box via an iPad, lest the "n" turn into an "s".
I know about cases in parliamentary democracies where someone's immunity has been nullified - assuming they have it in Australia - but only in domestic disputes, not international.
Immunity is mostly a feature of countries with fully separated powers.
In fused Parliamentary systems it makes less sense to worry about the infringements of the Executive upon the Legislative, because the Executive is subsidiary to the Legislative.
[1] en.wikipedia.org/wiki/Representation_of_the_People_Act_1981