The Lie Detector Was Never Very Good at Telling the Truth
by Amit Katwala from Feed: All Latest on (#69CJZ)
Taking a polygraph test is always stressful, and the results are often flawed. So why have police been using it for 100 years?Taking a polygraph test is always stressful, and the results are often flawed. So why have police been using it for 100 years?