It has been proven in multiple studies that police dogs can be manipulated by their handlers, either by triggering them consciously or just by the fact that the

It has been proven in multiple studies that police dogs can be manipulated by their handlers, either by triggering them consciously or just by the fact that the dog picks up on the cop's body language. http://www.ucdmc.ucdavis.edu/welcome/features/2010-2011/02/20110223_drug_dogs.html http://www.ucdmc.ucdavis.edu/welcome/features/2010-2011/02/2...