Ky uses a polygraph, but it can only be used as an investigatory tool.. It's not admissible in court yet.. All voice analysis software is new and isn't in wide spread use hear yet.. Actually, we have been learning about kinesic interrogation. It's physically detecting deception through chains of verbal and (autonomic) nonverbal cues... Neat stuff.. Look into a guy named Stan Walters...

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You come into the world weak, and you will leave the world weak. What you do in between is up to you!