Helping Drug-Sniffing Dogs Do Their Job

Guest: Fred Helfers, Drug-Sniffing Dog Trainer and Retired Police Narcotics Detective Sniffer dogs are used by police forces worldwide to search for drugs, dead bodies, arson evidence – and even money. Dogs are being used to help diabetics monitor their blood sugar, and research is underway to see if they can help detect cancer. But the more we rely on dogs to do vital work, the more critical it is that they be rigorously trained and tested.