> Results in confusion and frustration in the canine – As stated previously, under doubleblind testing, the determination of the team’s accuracy cannot be made at the time of the alert. Therefore, to provide or withhold a reward from the canine under such a condition can result in confusing and frustrating the canine, which will lead to an increase chance of incorrect responses.
Juxtapose that with the real world. I am not an expert but I sincerely doubt that K9s in airports get treats every time they correctly identify a illicit source. That is why they are trained constantly(I presume). Testing for one hour or one day will likely not have an effect on the long term ability of the dog to correctly sniff illicit sources.
The NNDDA article is addressing the "double blind attack", which in my opinion is their way of redirecting from the notion that the K9s should not be used as a gold standard to ascertain probable cause. I would have to think more on the subject to comment on reasonable suspicion. If they truly believed in the idea that handlers are benign, they would embrace the double blind process.