All of the baggage handlers at Qantas are Muslim.
Without exception.
The drugs get offloaded by the baggage handlers, and they just carry them into their locker room.
They never left the country, so there is NO customs check, no oversite, and any criticism is met with "you're an islamophobe"
The drugs get distributed to the Muslim gangs. Commancheros, Nomads etc. John Ibrahim's family is entrenched.