Deep Dive: The Lie Detector (2023)
Film Lens

The documentary 'The Lie Detector' examines the development of the lie detector in the early 20th century, focusing on its invention by researchers in the United States. It discusses how the machine was initially accepted by law enforcement and became popular in assessing honesty in personal and corporate relationships. The film presents the dual nature of the lie detector as both a tool for truth verification and a means of coercion.
Directed by Rob Rapley, the film addresses the ethical concerns that arose with the increasing use of the lie detector, particularly its role in intimidation by police. Through interviews and historical context, it presents a nuanced view of the technology's legacy and its impact on society.
Why Watch
- •See how the lie detector became a police intimidation tool.
- •Find out about the ethical concerns surrounding its use.
- •Meet the researchers behind this controversial invention.
Did You Know
•The lie detector was developed in the early 20th century in the US.
•The documentary is directed by Rob Rapley and produced in 2023.
•The film has a duration of 53 minutes.
•The lie detector became a common tool for assessing fidelity in personal relationships.
Perfect For
Forensic technology enthusiastsHistory of science fansLaw enforcement professionals