You wouldn't have to be the sharpest tool in the shed, as a baggage handler, to slip contraband into a Q flight cargo hold, and then pull it out and deliver it to a waiting car at the edge of the tarmac!
There would be so many cameras watching them at all times, they wouldn't even be able to scratch their goolies without someone knowing immediately, which side it was, that they'd scratched!
Then there's the massive AFP and Border Force Intelligence, which has acquired so much info from the ANOM app - plus the ability to listen in to phone conversations almost anywhere - as well as the number of undercover operatives within the drug gangs and motorcycle gangs!