Glossaries: K9 SAR Glossary
Trailing (Dog): dogs are scent specific and require a scent article, with a track.
Visualize the dog's Nose Down and Up, working some distance from the actual footsteps.
POD (Probability of Detection): The chance that an object or missing person will be detected if present.
POA (Probability of Area): The chance that a missing person (or clue) is in the search Area.
PLS (Point Last Seen): a point where a witness actually saw the subject. The PLS is usually the IPP (Initial Planning Point).