Illinois Polygraph Lie Detector Locations

Where can I get a polygraph test near me? How much does a lie detector test cost? You can find our testing locations and prices below, including examiner credentials, office hours, and more. Follow these steps to schedule an appointment.

  • STEP 1: Select the GPN testing location you would prefer to go to (see below).
  • STEP 2: Register for an exam, either online or by calling our 24-hour hotline.
  • STEP 3: After processing, your examiner will contact you to schedule an appointment, and the examiner's contact information will be emailed to you.
  • STEP 4: Schedule an appointment for a mutually convenient date and time.
  • STEP 5: Discuss with your examiner what you are trying to resolve with the test.
  • STEP 6: After the exam, your examiner will provide a detailed written report.

Enter your zip code to find our nearest location (U.S. only)



City Cost
Bloomington IL 750 USD
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Champaign IL 825 USD
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Chicago (Joliet) IL 750 USD
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Effingham IL 900 USD
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Kankakee IL 750 USD
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Metropolis IL Temporarily Unavailable
Mount Vernon IL 975 USD
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Ottawa IL 750 USD
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Peoria IL 750 USD
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Quincy IL 750 USD
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Rockford (DeKalb) IL 750 USD
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Springfield IL 750 USD
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zz Near Illinois – Beloit WI 750 USD
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zz Near Illinois – Davenport IA 600 USD
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zz Near Illinois – Hannibal MO 850 USD
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zz Near Illinois – Kenosha WI 750 USD
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zz Near Illinois – Lafayette IN 575 USD
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zz Near Illinois – Platteville WI 850 USD
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*If the exam is provided at the customer’s location:

It is the customer’s responsibility to provide a suitable testing room.
The room must be quiet and free from distracting noises and other interference (e.g., crying babies, telephones, television, nearby conversations). Room temperature should be between 70-75 degrees F (21-24 C). No one other than the subject and examiner (and possibly the examiner’s assistant or interpreter) are permitted in the exam room. There must be a table (18″ x 30″ minimum), two chairs, and an electrical outlet. This room may be inside someone’s home or office or may be a rented meeting room at a hotel. We do not recommend testing in a hotel room or bedroom, particularly with female subjects, for obvious reasons. This room must be provided at the customer’s expense, as it is not included in the exam fee.
For answers to other questions, please visit our FAQ page.