Police are using all the tricks in the bag to catch drug dealers red-handed ahead of the first week of Schoolies, which starts this weekend.
Gold Coast police and Border Force officers are using sniffer dogs and X-ray machines to weed out any drugs or weapons that may be being sent through the post.
They have set up at the Bundall Post Office to comb all the packages they can.
22,000 school leavers are expected to flock to Surfers Paradise for the week-long celebrations.
Bags have been banned from the official beach-party precinct this year.