Air Scent Dogs

The air scent dog works off lead, ranging back and forth in an area to pick up the human scent left by the subject. Ranging often takes the dog out of sight for several minutes at a time, so the handler must trust his dog and listen for an alert. Once the dog gets the subject's scent, he moves in to its source. The dog must then "alert" by returning to the handler and "indicating" her in some way that the handler should follow. The dog then "refinds" the subject and leads the handler to the subject.