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.
- Tür: Belgesel
- Stüdyo: Central Intelligence Agency (CIA)
- Anahtar kelime:
- Oyuncular: