Quoting Rohan McLeod (rhn@jeack.com.au):
There is also the possibility that they will take umbrage at questions, they simply don't understand ?
There is always the chance of peace officers taking umbrage. That is why one should always be physically cooperative, extremely polite, and utterly uninformative past what law actually requires.
Unfortunately 'magistrates' who can adjudicate such a claim by for example the NSA, CIA ; or if one lives in Victoria ASIO or ASIS; would seem currently somewhat thin on the ground !
The best way to deal with government misbehaviour is to render it impossible, of course. The next best is to haul the bastards into court. (Optimal outcomes are most likely if one has followed the indicated strategy concerning any friendly visiting constables.)