How Can a Polygraph Test Help Catch a Cheater?

There are many reasons both personal and professional that could prompt you to look at polygraph testing. One common reason is to identify cheating in your relationship. When performed by a professional and expert company like Kendall Investigations, it offers a high degree of accuracy and provides instant results. If you have lost faith in someone or suspect that someone is cheating on you, conducting a polygraph test is probably the fastest way to get an answer.

Kendall Investigations conducts private polygraph examinations for many couples working through infidelity. Polygraphs are carried out by Kendall Shull who is highly trained and certified to perform polygraph tests that deliver the most accurate results possible. He is the only person to have attained a Masters’s Degree in Polygraphy.

What is a Polygraph Test?

A polygraph test, also popularly known as a lie detector test, is a scientific examination of an individual by considering the physiological symptoms or signs measured during the test. When we lie, our body responds in a certain way that is not under our voluntary control. For example, the blood pressure and the pulse rate increase. When conducted by an experienced and professional company like Kendall Investigations, the polygraph test has a high probability of accuracy.

The word ‘polygraph’ means poly=many; graph = line graphs. This indicates that the physiological symptoms are represented using line graphs. All the signs are interpreted together to come to a final result.

How Do Polygraphs Help in Catching a Cheater?

Trust is the foundation of any strong relationship. In today’s world, there are several instances when that trust is breached. A cheater may be a spouse who has been unfaithful to their partner. A polygraph measures blood volume and heart rate, breathing rate, and skin conduction of an individual under the question of being a cheater.

Depending upon the case, the expert examiner asks questions from different angles, ensuring that the individual does not get a chance to speak half-truth.

The polygraph test takes approximately 2 hours and the results are based on the interpretation of the graphical readings. When performed correctly by an expert company like Kendall Investigations, the test can help identify whether an individual is a cheater or not with certainty.

Uncover the truth!


Ken Shull served as a Special Agent with the FBI for almost 25 years and was head of the FBI Polygraph program until his retirement in 2001. At that time he set up the Kendall Investigations practice as a private investigator in Knoxville, TN offering Polygraph services, private investigations, and security guards. Ken is a member of the American Polygraph Association and The American Association of Police Polygraphists.

The Truth is Still the Truth Even if No One Believes it, A Lie is Still a Lie Even if Everyone Believes it.