I had a very interesting lecture today about non-verbal communication, with some very important practical implications, particularly for those who may have to detect deception as part of their work. As there seem to be a lot of LEOs around here, I am interested in any comments on what guidelines you are given for telling if people are lying to you. Some research I have seen shows that US law enforcement manuals have completely inaccurate criteria listed as things to look for in people they believe may be lying. This research was from 2004, so I'm interested in whether it has changed or perhaps differs from state to state. Also, comments and answers from LEOs in any other countries will be useful or any general comments about the topic.
What guidelines are you given on physical signs liars show?
Have you found them to be accurate?
Have you noticed any signs of liars that are perhaps not in manuals?
What guidelines are you given on physical signs liars show?
Have you found them to be accurate?
Have you noticed any signs of liars that are perhaps not in manuals?