Polygraphy

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POLYGRAPHY: SCIENCE OF LIE DETECTIONHISTORICAL BACKGROUNDHistory: 19TH Century.Dr. Hans Gross (father of Criminalistics) said:• The search for truth is the basis and goal of criminal investigation.• A large part of criminal work is nothing more than a battle of lies.Hogan (a famous book writer) cites:“Investigation is a battle of lies against lies”As time pass by, men are striving to find ways how to detect lies.To some countries, used Ordeals/Trials in which judgment is made by a Supernatural God.But as time pass by, some people studied that bodily responses maybe used as bases in lie detection.Others studied that physical reactions may serve as bases of lie detection.Development of Cardio Sphygmograph1. Angelo Mosso (1895) – studied fear and influence to the heart. He developed thesphymomanometer and scientific cradle, used in measuring the flow of blood while person is inprone position.2. Cesare Lombroso (1836-1909) – invented hydro-sphymograph (Lombroso’s Glove) that measureschanges in pulse and BP. He was the first person to employ scientific instrument for lie detection.3. William Moulton Marston (1915) – Studied Sphygmomanometer and became the father of modernpolygraphy.He dealt with the following:• Studied and researched on Sphygmomanometer• Experimented on galvanometer and sphygmomanometer• Studied Respiration4. Dr. John Augustus Larson (1921)o he was one among those who developed sphygmomanometer (known by press inAmeric … Purchase document to see full attachment

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