The planted 6 packs of explosive to see if they could find them, they got 5/6 which isn't bad. The 6th ended up in some irish blokes luggage and he gets thrown in the slammer when he arrives in dublin. Realising their mistake the slovak authorities swung into action and told the irish police three days later.
Makes you wonder how often this sort of thing happens and how often they lose live explosives in the process