All polygraph questioning techniques that aim at some form of standardization or reproducibility involve comparisons of physiological responses to questions of central interest for the investigation ...

Polygraphs chart out blood pressure, breathing rate and sweat production to help an examiner determine whether a subject may be lying. The LX4000, produced by Lafayette Instrument, displays both raw ...

Murdaugh attorneys, who claimed the polygraph examiner engaged in “odd conduct” before administering an exam, asked the judge to deny or delay ruling to hold Murdaugh in breach of his plea agreement ...

As the UK government plans to extend the use of lie detectors to terrorism and domestic abuse, our science editor puts himself in the hot seat “Did you plant the bomb?” It’s not a question I’ve been ...