[As of 2006, part IIIAAA of the Defence Act 1903 (Cth) permits Australian military aircraft and warships to fire missiles into civilian aircraft or shipping where they present a threat to \u27Commonwealth interests\u27. There is no need for a declaration of war nor any actual armed conflict to be taking place. This is not to say that there are no checks and balances. There are, and they include the concurrence in most circumstances of the Prime Minister, Attorney-General, Defence Minister and Governor-General. However, such powers were too much for the German Constitutional Court, which struck down comparable German legislation. This was essentially on the grounds that a government Minister could not decide to take potentially hundreds of i...