If you set off a gas chromatograph for nitroglycerine and then say you have heart tablets then you'll be fine. He obviously set off a specific trigger AND couldn't account for it (although they clearly tried to get him to).
Back in the 70s or 80s a group of friends in Britain were sentenced for participating in a terrorist act because they set off an explosive test. They spent years in prison before it was determined that it was a false positive caused by the coating of a popular brand of playing card.
Back in the 70s or 80s a group of friends in Britain were sentenced for participating in a terrorist act because they set off an explosive test. They spent years in prison before it was determined that it was a false positive caused by the coating of a popular brand of playing card.