Comment Re:What would the combined accuracy be? (Score 1) 97
BIG difference. Drug sniffing dogs primarily exist as a way for cops to fuck with the people they always wanted to fuck with. The fact that they are being used to ferret out private property is a big enough deal in the first place, but you would obviously expect them to try to please their trainers, and their trainers want to search THAT GUY for *reasons*. Reasons that they can't say out loud. Maybe the policeman has a hunch... or maybe he's just a racist asshole.
So the actual role of the drug dogs is just to give the cops a reason. That's not their claimed purpose, but the operators of the technology are just looking for excuses to infringe on liberties.
This scenario is, they actually want the dog to sniff out the disease. If you're interested in a dog who can diagnose, you don't gain anything from false responses.