The Evolution of Lie Detection

The history of lie detection is traced back to the early use of the polygraph, originally designed to monitor vital signs for medical purposes. Developed by John Larson based on William Moulton Marston's theories, the polygraph was later co-opted by police departments for interrogation, despite a lack of solid scientific evidence supporting its accuracy. By the mid-20th century, the use of polygraphs expanded widely across various sectors, often influencing public perception of individuals accused of crimes. Critics argue that the polygraph is more an anxiety detector than a true lie detector, with studies showing high false positive rates in its results.