Scenario: Diamond Fever
The valuable Hope Diamond was on display at the Smithsonian Natural History Museum. One night the diamond was stolen, the police believe the person who stole the diamond spent at lot of time in the museum. During interrogation, three people appeared nervous and deceptive. They were recent patrons to the museum. The police gave polygraph examinations to these three suspects. A polygraph measures changes in body temperature, breathing rate and pulse rate.
During interrogation, what two factors of the suspects’ behavior likely led police to believe the people were being deceptive?