See [0]; this is a well researched book with a significant amount of actual evidence about the (non) validity of polygraphy, not a conspiracy theory. [0]: http

See [0]; this is a well researched book with a significant amount of actual evidence about the (non) validity of polygraphy, not a conspiracy theory. [0]: https://antipolygraph.org/lie-behind-the-lie-detector.pdf https://antipolygraph.org/lie-behind-the-lie-detector.pdf