A polygraph is an instrument used for the purpose of lie detection. Today the polygraph is used and accepted within every sector of society: federal, local and private. In the following infographic, Global Polygraph Network provides detailed information about the polygraph and takes an in-depth look at the polygraph tests available for relationship and fidelity issues.

[Click image for full size version]

Relationship & Fidelity Issues: A Guide to Lie Detector Testing

Irma Wallace

Co-founder and Vice President of SearchRank, responsible for many of the day to day operations of the company. She is also founder of The Arizona Builders' Zone, a construction / home improvement portal. Follow +Irma Wallace on Google + as well as Twitter.

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