Global Polygraph Network 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.

Contact Details

  Person Michael Martin
  City Elmira, NY
  Zip Code 14904
  Address PO Box 4444
  Phone Number (800) 545-1112

Business Representative

Michael Martin


Polygraph examiner since 1984, conducted over 8000 exams, appeared over 350 times as an expert and/or consultant for national media, court-qualified polygraph expert, member APA, BBB, PPEA, MPA, BEPA, ATSA and ASTM.

Products & Services

Polygraph (Lie Detector) Testing

Price varies by test location

Global Polygraph Network offers expert polygraph (lie detector) testing worldwide.

From Our Website

GPN is the world's largest referral service for private polygraph (lie detector) testing, offering services at nearly 500 different testing locations worldwide. Our examiners are thoroughly screened and must submit to a Quality Control review before being considered for membership. Nearly half of the examiners submitting applications are denied membership for lack of qualifications or experience. Members must complete regular continuing education programs to ensure they are using the most up-to-date and validated techniques.