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Should you take a lie detector test?

On Behalf of | May 2, 2023 | Criminal Defense

Lie detectors seem a popular tool for law enforcement and investigators trying to get to the truth of a situation. Still, these tests can have their own complications and legal implications. 

If you are in a situation where you are asked to take a polygraph test, you may want to consider the pros and cons before making your decision.

Most authorities consider lie detectors “junk science”

A lie detector measures physiological responses in the human body, such as heartbeat, blood pressure, and breathing patterns, to determine if a person is lying or telling the truth. While it may seem like a great tool to prove your innocence, the truth is that polygraph tests are not always accurate.

Several factors can affect the accuracy of polygraph results. These include anxiety levels, cultural differences, medications and physical conditions that might interfere with the test’s outcome. Anxiety can be especially problematic since it can lead to increased heart rate and respiration, which may lead the examiner to believe that the test subject is not being truthful. 

Even people who do not suffer from any mental health issues can feel anxious when faced with such tough questioning.

Other factors like distracting simulations or outside interference can also affect a person’s response. Additionally, the level of experience and opinion of the examiner, who can be subjective, also plays a significant role in the results of a lie detector test. Furthermore, it is essential to remember that polygraph tests are not admissible in court as evidence.

Taking a lie detector test could result in more harm than good. It’s important to consider the consequences before deciding to take one and use other methods for your defense instead.