The burden is on those interpreting the behavior of specific sniffing dogs in a way that demonstrates their is actual reliability in general, and in the specifics. No the other way around.
Are dogs used to get warrants fraudulently? The answer is absolutely. It happens all the time. But the idea that sniffing dogs are fake is ridiculous, they are carefully trained so as to not respond to handler wishes (dog trainers are aware of this trait also BTW), deliberately signalled or otherwise, even though sometimes they might do so. And making the simple claim that they bark is enough for me to know that someone making authoritative statements on the topic hasn't a clue what they're talking about.
> The person I was responding to explicitly said that sniffing dogs are secretly trained to respond to handler gestures.
Yes, I did say that.
> They're claiming that drug sniffing dogs are a charade
No, I did not say that.
> Are dogs used to get warrants fraudulently? The answer is absolutely. It happens all the time.
Yep, my point.
> But the idea that sniffing dogs are fake is ridiculous.
Nowhere I claimed that sniffing dogs are fake.
So we seem to agree on everything. Thank you, resolved the confusion.