Exactly my point, in certain circumstances they are almost infalliable, in an area where her scent could be anywhere and everywhere, they cannot be as accurate. Maybe we won't know, but I have to think that was one reason they kept the HQ, and the bulk of the search party onsite. In Mike's case, saying they are 90% he was not in town, was based on how the dog hit- meaning yes, we do think he left town, but not on his own, and not willingly- and possibly not with us anymore- the dogs are trained for that specifically and they got it nowhere in the perimeter. If he were in a snowbank or anywhere on the ground, they would have found him- foul play is the only conceivable option- now getting LE to buy in is another.