She went missing at 6 am Friday morning. The dogs were brought on Saturday morning, about 24 hours later.
It was not a busy area at all. She lived on a quiet cul-de-sac. Very few cars or people walking on her small street. So it is very surprising that the dogs could not follow her scent from the driveway to the bus stop. I only bring it up because now it gives me pause, in other cases, when we are told the same thing.
A pertinent point. It also gives me pause. I only wish I had some better information to gauge why this is so. I've now read so many different articles on sniffer dogs (makes interesting reading, and at least I'm learning something!) but unfortunately, I haven't been able to find an answer. For the most part, it seems a very professional operation, with well-trained dogs and trainers. Of course there will always be a percentage of failures, as with anything in life, but I am still at a loss to explain why scent would have been obvious in the driveway, but not found elsewhere - most especially if it's been proved (in the case of the missing girl) that she did indeed walk to the bus stop. It's all very frustrating, really.