http://www.govtech.net/magazine/story.php?id=99712
Jim McKay
"Law enforcement and corrections officers have long used the polygraph as a tool to confront a suspect or prisoner in an investigation. The polygraph is inadmissible in courts, but is widely used to exonerate innocent subjects and elicit confessions from others. A new voice-analyzing tool -- Layered Voice Analysis (LVA) -- is gaining popularity among law enforcement and corrections agencies.According to a segment on ABC's Primetime on March 31, 2006, at least 1,500 police or corrections agencies are using some type of voice-stress-analysis software when questioning subjects. The broadcast prompted the reaction of critics who say the technology doesn't work."
