Welcome to the Global Polygraph Network

Lie Detector Testing Worldwide

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. Our clients will never be referred to an untrained or fraudulent examiner.

GPN will provide testing for virtually any situation, provided the request is not in conflict with any current law or regulation. We do provide services to the general public as well as attorneys, therapists, corporations, and government agencies.