Should I Cooperate and Take a Lie Detector Test?
We're routinely asked by potential clients if they should take a lie detector test when requested to do so by a police investigator. People often want to clear their names and hope that cooperation will move things along. However, there is not a single reason you should take a lie detector test when asked to do so.
The only reason the police want you to submit to a test is so that they can elicit a confession or gain information to use against you. They are skilled at tricking test takers.
In Minnesota, the results of a lie detector test are inadmissible in court. So, even if you pass with flying colors and you are still charged, you can't use the beneficial result in your favor. Why, then, would anyone agree to submit to a lie detector test? You gain nothing by doing so and it can only hurt you.
Lie detector tests are famously inaccurate. There is a very real possibility that if you submit to the test, false truths may be elicited. The innocent often test guilty. Remember, you have the absolute right to remain silent and your silence cannot be used against you. Your words, however, can be used against you.
So, say nothing. Submit to nothing. And let the investigator know that they can talk to your lawyer. Blame your silence on us. Whatever works. But, don't give the police a free opportunity to build a case against you.
