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Suspects and Witnesses: Part IV Use of Polygraph in Investigations

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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Tür: Belgesel

Oyuncular:

Mürettebat:

Ülke: United States of America

Çalışma süresi: 26 dakika

Kalite: HD

Serbest bırakmak: 1947

imdb rating 7

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