Home > Movies > Documentary > Suspects and Witnesses: Part IV Use of Polygraph in Investigations (1947)
Suspects and Witnesses: Part IV Use of Polygraph in Investigations (1947)
Plot Summary
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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How long is Suspects and Witnesses: Part IV Use of Polygraph in Investigations?
Suspects and Witnesses: Part IV Use of Polygraph in Investigations has a runtime of 0 hours and 26 minutes.
Movie Details
- Release Date
- 1947-08-29
- Status
- Released