Does anyone know how soon the scent dogs were called in?
It has bothered me that there was no evidence of Hasanni being in the driveway and I wondered how long Hasanni would have had to have been there for his scent to be found (or how fast someone would have had to abduct him).
I snipped these from the
Ohio Valley Search and Rescue.
human scent - All humans have an individual scent left behind by the 40,000 skin cells dropped per minute. These dropped skin cells, called skin rafts look like tiny potato chips and float easily on air currents. Temperature, humidity, sun exposure, and wind determine how long a skin raft can be detected. The hotter and drier the day, the shorter the life of the skin raft. That's why search dogs need to be called as quickly as possible to a search scene.
tracking dog - The tracking dog works from a scent article from the subject, such as a piece of clothing or an item touched only by the subject. From this article, the dog picks up the subject's scent and uses it to find the subject's path. He works in a harness on a 30-50 foot lead and leads his handler directly to the subject by tracing the exact footsteps of the subject.
trailing dog - The trailing dog works similarly to the tracking dog. A scent article is used so the dog can pick up the subject's scent and trail. The dog may waiver from the person's actual track by several feet, cutting corners and using the wind to his advantage. Again, the dog is generally in a harness with a 20-30 foot lead.
air scent dog - The air scent dog works off lead, ranging back and forth in an area to pick up the scent left by the subject. Ranging often takes the dog out of sight for several minutes at a time, so the handler must trust the dog and listen for an alert. Once the dog gets the subject's scent, he moves in to its source. He then must "alert" by either barking while staying with the subject or by returning to the handler and "telling" her in some way that she should follow. The dog then leads the handler to the subject.