Ekman, P., O& #39;Sullivan, M., & Frank, M. G. (1999). A few can catch a liar. Psychological science, 10(3), 263-266.
Research suggests that most people cannot tell from demeanor when others are lying. Such poor performance is typical not only of laypeople but also of most professionals concerned with lying. In this study, three professional groups with special interest or skill in deception, two law-enforcement groups and a select group of clinical psychologists, obtained high accuracy in judging videotapes of people who were lying or ...