I think this thread is a bit of a wind up!
Err, why? Are you really missing the point? All the allegations made
do not require substantiation- the poster has speculated that what is occurring is illegal, and clearly stated why.
Mixing different authorities isn't going to help in this case- one must comply with ALL relevant laws. Just because IATA/CASA (or whoever) grants rights to operate aircraft, doesnt get you off the hook regarding WHO operates the aircraft (immigration, Workcover, etc. etc.). In your Air NZ example, I suspect that the aircraft are operated by people who have the right to work in oz (kiwis). Of course, Immigration officials may check ;-)
Surely qantas wouldn't do anything
illegal in order to make more money? Right? Right?