This article is from the Working Dogs FAQ, posted to rec.pets.dogs newsgroup. Maintained by Cindy Tittle Moore with numerous contributions by others.
Quite often no scent article is available. Dogs trained in area search can be employed instead. These dogs air scent (that is, test the air rather than follow a specific scent) and search for any human scent. This is most often used in wilderness search for missing hikers or campers. Patrol dogs will also use the technique to find anyone hiding in a building or other confined area. Disaster search dogs (below) also employ air scenting in their work.
 
Continue to: