A private lie detector test usually costs $500 to $900. Some complex tests cost more.
A private lie detector test usually costs $500 to $900. Some complex tests cost more.
Established in 1987, Global Polygraph Network® is the world’s largest and most trusted provider of polygraph services, with lie detector testing available worldwide at over 500 locations by highly-trained experts. Avoid “discount” polygraph frauds and “over the phone” testing scams. We only provide real polygraphs by real examiners. Trust our A+ BBB rating, up-front pricing, and a written guarantee.
