Virginia Search and Rescue Dog Association

Term	Definition
PLS	Glossaries: K9 SAR Glossary PLS (Point Last Seen): a point where a witness actually saw the subject. The PLS is usually the IPP (Initial Planning Point). Author: ERI: Emergency Response International

Diffusion
Diffusion (of scent): the even distribution of air in all directions.
Double Blind
Double Blind: A training exercise is considered Double Blind if the person person searching does not know the location of odor(s), and/or if any are prescent, AND the accompanying Instructor/Evaluator

Virginia Search and Rescue Dog Assocation