Why are rules for Identity so fluid across everything Gov does
The ASIC - a) proof positive of anti terrorist sympathies b) widely recognised joke, or c) a good way of getting a staff discount at the Sydney airport's cafeterias.
A defence ID in Canberra can be down to a Baseline clearance - which is still well above the burden of proof that the ASIC is. I'm sure the guys who mow the lawns in public defence spaces probably get away with a Fed Police check (and a working with children check, if mowing CASA's lawn).
I wonder what causal relationship is there between your inability to get a police check and afford $200 and your willingness to kill infidels for your religion.
Also, I may be wrong, but aren't ships that come into big ports able to carry much more destructive power than a 1967 Bonanza. What are the burdens of identity on these flags of convenience? I think the Mariners Licence (for Aussies) is similar to a passport, but what about the dozen Chinese nationals on the 50,000 ton fertilizer carrier.