As cool as this development is, I can't help but think about how this could be grossly abused and used as another means of detaining or abusing certain populations state or federal gov might not like. "Pointing", or the provable technique of eliciting a "positive" detection response from a detection animal, has long been a huge point of contention for use of drug dogs during traffic stops - especially in California and Illinois. A huge proportion of these stops also involved the use of "pointing" drug dogs to lead to egregious 4th amendment violations.
https://www.chicagotribune.com/news/ct-xpm-2011-01-06-ct-met...