Suspects and Witnesses: Part IV Use of Polygraph in Investigations
Ver Peliculas "Suspects and Witnesses: Part IV Use of Polygraph in Investigations" 1947 Cuevana - This short dramatized documentary film, presented by U.S. Army, introduces use of polygraph in investigation. Polygraph is used as a lie detector that measures blood pressures, pulse, respiration, skin conductivity while suspect is asked questions and answering them.
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Producción: Central Intelligence Agency (CIA)
País: United States of America
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