"Elliot Aronson’s Social Psychology reads: “It would be good if there were an infallible examination to establish whether someone is lying […]. The police could ascertain whether the suspect’s claim that while the crime was being committed he was eating a sandwich at home is true.” The question of reliability of the alibi of those suspected of committing a crime is frequently a problem for officers of law enforcement and prosecution. In many cases, having that fact confirmed by the relatives of the suspect is not convincing for the officer. Polygraph examination could help to determine the actual whereabouts of a given person when the crime was being committed."(...)