Downvoter: you probably disagree with the Court's interpretation, and personally, I'm with you. Dog sniffs should in theory have nothing to do with traffic stop

Downvoter: you probably disagree with the Court's interpretation, and personally, I'm with you. Dog sniffs should in theory have nothing to do with traffic stops, because the point is something completely different - to find drugs and weapons. The way the Court historically treats the dog sniff is unique - it's not a classic search of possessions or property, because the only thing it reveals about them is whether or not they're contraband. Officers can freely perform a dog sniff during a Terry/motor stop with no additional requirement. The dog sniff does not require probable cause or even reasonable suspicion - in fact, it is frequently used to help establish them. Sure, we might not like it, but that's the way the law is currently read.