What Is The Average Cost Of A Lie Detector Test? Average Lie Detector Test Price

The cost of a lie detector test (also known as polygraph test) depends on the information being unearthed. The cost of performing the test can be approximately as low as $400. It may also be as expensive as $1500. In the beginning, lie detector tests were performed through analog instruments. The use of digital instruments today has made the procedures much improved. Now there are computerized polygraph systems that make readings more accurate and cost effective. Usually, it takes about 3 to 4 hours to perform a lie detector or polygraph test.