High-Stake Lies
When a liar stands to get a notable gain, or faces a notable loss by telling a lie, this type of lie is known as a high-stake lie. In this situation, the liar stands to gain or lose either emotionally, physically, financially or psychologically by maintaining his lie. If his lie leaks out, the liar will pay a sizable price.
It is also when the stakes are high for the liar that clues to deception leak from a liar at a far greater level than a low-stake lie.
With that, if someone lied to me about his favorite color, and had nothing to gain or lose for doing so—which is a low-stake lie—he likely wouldn’t give off detectable hints. With that, I would be in the dark along with everyone else as to what the truth is. Quite simply, this is because it doesn’t cause anyone much difficulty to say blue instead of red, or wine instead of beer.
Now, not all low-stake lies are undetectable; it really depends on the simplicity of the lie. The more simplistic the lie is, the more difficult it is to spot (e.g., favorite color). The more complex the lie becomes, the more likely it is a clue will leak (e.g., lying about your whereabouts for six hours). Regardless, though, you still don’t get the same abundance of clues as you would in a high-stake lie.
For example, in low-stake lies, you may or may not see word searching, stammering, or thinking clues. In high-stake lies, you will likely see a mixture of those, plus emotional clues.
However, when a murderer who kills for the psychological thrill is facing charges, the stakes are high. He knows his days could be numbered, and that puts pressure on him if he wants to continue to get his sick thrill. That pressure is what causes more clues.
So, next time you tell me what your favorite color is—and lie—don’t be surprised if I don’t see it. I see lies when it comes to high-stake lies. Low-stake lies are another ballgame.
Update 7/19/2007:
High-Stake Lies also dissipate once someone is convicted of a crime. After a conviction, a person no longer has anything else to lose by continuing the lie (since they are paying the ultimate price by the conviction and the sentence). Hence, the pressure that comes from having to maintain a lie dissolves away, and the person is no longer under any pressure to lie. There are no more repercussions to lying, and as a result, the clues will be greatly diminished, if not disappear altogether.