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American Experience

Chapter 1 | The Lie Detector

Clip: Season 35 Episode 1 | 10m 24s

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Discover the story of the polygraph, the controversial device that transformed modern police work, seized headlines and was extolled as an infallible crime-fighting tool. A tale of good intentions, twisted morals and unintended consequences.

Aired: 01/03/23 | Rating: NR

Corporate sponsorship for American Experience is provided by Liberty Mutual Insurance. Major funding by the Alfred P. Sloan Foundation.

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The Chinese Six Companies

On May 28, 1900, San Francisco policemen formed a perimeter around Chinatown as officials diagnosed bubonic plague in the neighborhood and wanted to quarantine the nearly 20,000 residents. As tensions flared, an influential group of merchants known as the Chinese Six Companies sprang into action.

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