The polygraph-developed in the 1920s by John Larson, a Berkeley, Calif ... A subject is strapped to a chair by wires and cuffs on his arm, chest, and fingers, and the "lie detector" marks his vital ...

The first polygraph dates from 1920, when a California-based policeman and physiologist, John A. Larson ... to do with the actual job — and the lie detector would reach a conclusion as to ...