I'd been tracking detection dogs more than attack dogs, and yeah police dogs in use have false-positive rates sometimes 90%+. US precincts call them probable cause on four legs.

The sad thing is there's a detection dog sector that resents the current misuse culture since its delegitimizing good faith uses.

Maybe once we can overhaul how policing and investigation are done, we can restrict detection dogs to instances where high false positive rates will be counter productive. Say, sniffing for explosives at an airport at a long line of luggage.