Master Criminals Again

I met a colleague at a training event the other day. His court takes business from a major airport, and he told me that a man was stopped for money laundering after a dog detected a million of our English pounds in a bag that was on its way to the Middle East. So far, so average. But the smuggler had checked the bag in as hold baggage: given the combined track record of airport loaders and airport baggage handling systems (T5 anyone?) would you entrust a million quid, even a million dodgy quids, to airport check in?