In contrast to U.S. airports' high-tech scans, authorities at Auckland Airport in New Zealand only had to use their naked eyes to detect criminal wrongdoing. Security guards at the airport noticed a group of 12 tourists walking funny, and when they stopped and searched them, found that they were hiding about $8 million worth of meth in their shoes.

The traffickers were Malaysians, 10 men and two women, according to the New York Daily News, and their gait wasn't the only suspicious thing about them. For example, the tourists spoke no English, but the fake itineraries they were holding were printed in English. They told police they worked as waiters and builders.

Meth is a Class A drug in New Zealand, and the group could face life in prison if convicted of the illegal drug importing charges they were booked on.

Creative Commons image via flickr user malik ml williams