Science5 min read
How Does a Polygraph Actually Work? The Science Explained
Understanding the physiological measurements behind lie detection—cardiovascular activity, respiratory patterns, and electrodermal responses.
January 2026Read More
Knowledge Center
Polygraph Blog & Insights
Educational articles about polygraph science, preparation tips, and industry insights from certified examiner Brian Newcomer with nearly two decades of experience.
Preparation4 min read
5 Things You Should Know Before Your Polygraph Examination
Practical advice from a certified examiner on how to prepare mentally and physically for your upcoming polygraph test.
January 2026Read More
Education6 min read
Common Polygraph Myths Exposed: What Hollywood Gets Wrong
Separating fact from fiction about lie detector tests—from 'beating' the test to what nervousness really means.
December 2025Read More
Pre-Employment7 min read
Pre-Employment Polygraph: What Employers and Candidates Need to Know
A comprehensive guide to pre-employment screening polygraphs for law enforcement, government, and security positions.
December 2025Read More
Science5 min read
How Accurate Are Polygraph Tests? Understanding the Numbers
An honest look at polygraph accuracy rates, what 'inconclusive' really means, and factors that affect examination results.
November 2025Read More
Guide4 min read
How to Choose a Qualified Polygraph Examiner
Key credentials, certifications, and questions to ask when selecting a polygraph professional for your needs.
November 2025Read More
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