[JustSayNoToNannies]

But again, how do we ascertain that the hound actually received “the stimulus” to which it’s producing a response? How do we _know_ that the response is correct, and not a false positive?

Why are dogs routinely used in search and rescue missions?

In search and rescue missions, false positives don't generally trigger violations of privacy rights.

[Alaska Wolf]

false positives don't generally trigger violations of privacy rights

How many false positives have triggered violations of privacy rights? Are there credible statistics to which you can point?