Frequently Asked Questions

What is a polygraph examination?

A polygraph examination, commonly known as a lie detector test, is a procedure that measures and records several physiological indicators—such as heart rate, blood pressure, respiration, and skin conductivity—while a person answers a series of questions.

How accurate are polygraph tests?

Studies and research from the American Polygraph Association have resulted with above 90% accuracy rates. Evidence through scientific research and studies supports the validity of polygraph examinations as long as they are conducted and reviewed by a professional using validated techniques and procedures.

Can someone “beat” a polygraph test?

Some people attempt to use all types of methods to try to influence the results, but examiners are trained to detect such tactics. There's no guaranteed way to "beat" the test.

Who conducts polygraph examinations?

Licensed or certified polygraph examiners conduct these tests. They often have backgrounds in law enforcement or psychology and are trained in specialized polygraph techniques.

How long does a polygraph test take?

A full polygraph exam typically takes between 1.5 and 2 hours, including the pre-test interview, the actual test, and the post-test discussion.

What can I do to prepare for a polygraph exam?

Be well-rested, avoid alcohol or drugs (unless prescribed), and follow any specific instructions provided by the examiner. It helps to be honest and cooperative during the process.

Frequently Asked Questions

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