Most lies succeed because no one goes through the work to figure out how to catch them. Usually it doesn’t much matter. But when the stakes are high there is reason to do that work.
Lie checking isn’t a simple task, quickly done. Many questions have to be considered to estimate whether or not mistakes are likely and, if they are, what kind of mistakes to expect and how to spot those mistakes in particular behavioral clues.
Questions have to be asked about the nature of the lie itself; about the characteristics of the specific liar and of the specific lie catcher.
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