Parole officers equipped with the polygraph devices will ask questions to determine whether the offenders violated conditions of parole.
With the polygraph, the assumption is that the conflict is emotional: the liar feels guilty or anxious, and these feelings produce a measurable physiological response.
Increased disclosure of (child) sex offenders faced with the polygraph has also been found in other studies in Europe and the US (Ahlmeyer et al. 2000, Buschman et al. 2010, Emerick and Dutton 1993, English et al. 2003, Grubin et al. 2004, Wilcox and Sosnowski 2005).
But the polygraph test never took place.
Over the past two decades, inventors have attempted to supplant the polygraph with new technologies: voice-stress analysis; thermal imaging of the face; and, most recently and spectacularly, brain imaging.
The idea that lying produces physical symptoms found its modern expression in America in the early 20th century, with the invention of the polygraph, the "lie detector" so beloved of spy films and pulp detective novels.Polygraphs are much used in the land of their invention, but Britain has traditionally been rather disdainful.
Simulation of the crystal structure was carried out with the programs POLYGRAPH and CERIUS (Molecular Simulations Inc).
"She passed the polygraph test with flying colors," Mizrahi told the Guardian.
"The problem with that is that what the polygraph records is the fight or flight response, the reaction to stimulation.
Under the right circumstances and with a skilled certified examiner, the polygraph can be very accurate at detecting deception; however, the best use case is for interrogations focused on single events such as a particular crime.
