Premieres Tuesday, Jan. 3, 2023 at 9 p.m. on KPBS TV + Wednesday, Jan. 4 at 8 p.m. on KPBS 2 / PBS Video app. 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.
The Lie Detector begins in the first decades of the 20th century, when life was being transformed by scientific innovations, researchers made a thrilling new