The Truth About Lie Detector Tests

While the results of a Lie Detector Test cannot be used as evidence in Court to prove your innocence or guilt, often times the Prosecutor will consider the results in whether to proceed against you or drop the charges.
The test is comprised of three phases; a pre-interview, the test itself, and a post interview. During the pre-interview, you and the Polygraph operator will determine the questions you will be asked. These questions will require a simple yes/no answer and will generally be no more than three. That way there are no surprises and you will know up front what will be asked.

While the results of the test cannot be introduced in Court to prove guilt or innocence if you were to admit to the operator that you might have committed the crime, generally the operator will stop the test and your statement that “maybe I did commit the crime” can be used against you.

It is important, that before submitting to a police polygraph, that you fully discuss the process with your attorney as to understand what you should or should not say, what the process is, and the benefits or possible risks of taking the test. Often times, before I suggest a client take a police or public polygraph, I suggest they take one in my office. That way it is private, gets the client used to the process, and if the results are not favorable, the fact that you took this private test can be kept secret.

I have had several cases, where the results of the Polygraph ended up with the charges being dismissed. And if you are charged with certain crimes such as Criminal Sexual Conduct, by law you are entitled to a State paid Polygraph if you demand it.

Again, make sure you and your Attorney spend some time discussing the Polygraph Test so you fully understand the process, the benefits, and what not to say to avoid any possible risks.