Welcome to the Global Polygraph Network
Established in 1987, GPN is the world's largest provider of polygraph (lie detection) services and referrals. With over 1,300 years of combined experience, we offer confidential testing on virtually any issue by experienced examiners and have hundreds of testing sites around the world to select from. GPN is Better Business Bureau approved
Let us do the research for you
Each one of our
examiners undergoes
a comprehensive screening
process and must meet educational and experience criteria to
become a GPN member, so you can be assured you are getting
the highest quality service in any given area. In fact, we
reject nearly half of all the examiners who submit applications.
All of our examiners are experienced, certified and licensed
(when required) and are required to attend regular continuing
education programs. Many of our examiners are court-qualified
experts. We do not simply distribute your name to several examiners
in your area so they can bid on your test - the lowest bidder
is often not the best candidate. We do the research for you.
We investigate the examiners in your area and select the best
qualified candidate at the best price. Before you hire us,
you can review the examiner’s
credentials and you
will know the exact price for your exam. There are no hidden
charges.
An important decision...
Selecting a qualified examiner can be a difficult process, considering what is sometimes at stake. We understand the importance of this decision, so we will never refer you to an inexperienced examiner or one which uses a technique not validated by scientific research. If done correctly, polygraph on average is 90 to 95% accurate (click here to see the research). We offer only true polygraph services. Do not be fooled by offers of voice stress analysis (VSA), which the U.S. Government has determined to be unreliable.
How to set up a polygraph exam
The process is simple... select a testing location where you would like the exam and complete the registration process. Once you decide to hire one of our examiners, we will ask you for some information - needed to conduct the exam - and for a deposit which will be applied towards the overall exam fee. Within 1 to 2 business days the examiner handling the selected area will contact you to schedule the exam at a date and time that is convenient for both of you. We guarantee you will receive a quality polygraph exam by an experienced examiner in the geographic area you selected. The examiner will work closely with the customer to design the best test questions to resolve the issue under investigation. Keep in mind that a properly conducted exam may take 1½ to 3 hours to complete. Following the exam, upon request, a written report will be provided to you at no charge.
Thank you for visiting the Global Polygraph Network
We look forward to helping you resolve the issues that are important to you. Please visit our Frequently Asked Questions page for answers to the most commonly-asked questions, or email me personally with any questions that are not adequately covered by this web site.
R. Michael Martin, President
Court-Certified Polygraph Expert
Television’s "Lie Detector Guy" (1996 to 2004)
