It’s the end of an era for the polygraph. The lie-detector test has been the dominant investigation tool for detecting deception for the last 60 years. But, according to a recent statement from the National Association of Computer Voice Stress Analysts, its reign is coming to an end.
So far, 2,000 agencies have switched to the computerized voice stress analysis technology, including the Citrus County Sheriff’s Office in Florida. In the Jessica Lunsford abduction and murder case, the girl’s father was a suspect and took a CVSA examination. He was cleared. But then he was tested with polygraphs through different agencies. Those results were “deceptive” and “inconclusive,” which caused him to be considered a “person of interest.” Eventually, the killer was caught and confessed to everything.
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