I am curious. Operating under the delegation, whose responsibility is it to prosecute illegal behavior? CASA or RAAus? I would suspect it would remain with CASA. The big question is how do you effectively police lapsed registration? It would be heavy handed to advocate seizure of aircraft to prevent illegal flight and many here would decry the intrusion. It seems we have an aviation problem, not just an RAAus issue. How do we effectively weed out the attitude of "she'll be right, I can defy the law because I don't like it" short of the Darwinian method?