Add Yahoo as a preferred source to see more of our stories on Google. American inventor John Larson, right, demonstrates the operation of a polygraph at Northwestern University in Evanston, Illinois, ...

In the course of the committee’s work, we reviewed some material on the origin and history of polygraph testing. Some of this material is presented here because it provides interesting context and ...

John Baesler, associate professor of history at Saginaw Valley State University, has written his first book, examining the topic of polygraph use during and after the Cold War. The book, "Clearer Than ...

Chris Gugas built a career on one simple human foible: the tendency to lie. A polygraph expert, Gugas spent decades ferreting out the truth using a lie detector test. The tests he administered helped ...

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THE polygraph test has been used in criminal prosecutions for decades – a silver bullet for police and prosecutors alike. Measuring heart rate, breathing speed and the conductivity of skin, it is ...

The available evidence indicates that in the context of specific-incident investigation and with inexperienced examinees untrained in countermeasures, polygraph tests as currently used have value in ...