Polygraph Resources & Information
Educational resources to help you understand polygraph examinations, professional standards, and what to expect when working with a certified examiner.
Understanding Polygraph Testing
How Polygraph Examinations Work
Learn about the science behind polygraph testing, including the physiological responses measured and how examiners analyze results.
Learn More →What to Expect During Your Examination
A step-by-step overview of the polygraph examination process, from pre-test interview through results delivery.
Learn More →Preparing for a Polygraph Test
Practical tips for preparing for your examination, including what to bring, how to rest, and what to expect.
Learn More →Professional Standards
American Polygraph Association (APA)
The APA sets standards for polygraph examination, training, and ethics. All our examinations follow APA protocols.
Visit WebsiteAPA Standards of Practice
Overview of the professional standards that govern polygraph examinations, including examiner qualifications and testing protocols.
Learn More →Continuing Education Requirements
Information about the ongoing training and certification requirements for professional polygraph examiners.
Learn More →Legal Considerations
Polygraph in Criminal Investigations
Understanding how polygraph examinations are used in criminal investigations and their role in the legal process.
Learn More →Employee Polygraph Protection Act (EPPA)
Federal law governing the use of polygraph examinations in private sector employment. Exemptions apply to certain industries.
Learn More →Polygraph Admissibility
Information about the admissibility of polygraph results in various legal proceedings and jurisdictions.
Learn More →Quick Answers to Common Questions
How accurate are polygraph tests?
When conducted by qualified examiners using validated techniques, polygraph examinations yield conclusive results 95% of the time. Inconclusive results are typically due to factors like anxiety or medical conditions, not deception.
Can medications affect polygraph results?
Some medications can affect physiological responses. Before your examination, you'll complete a medical disclosure form so the examiner can account for any factors that might influence results.
How long does a polygraph examination take?
A typical examination takes 1.5-2 hours, including the pre-test interview, the actual test, and post-test discussion. Complex cases may take longer.
Professional Equipment & Technology
Newcomer Polygraph Services uses the Lafayette LX 7000 computerized polygraph system—one of the most advanced and reliable instruments available in the field.
- Computerized data collection and analysis
- Multiple physiological sensors for comprehensive measurement
- Digital recording for accurate documentation
- Industry-standard equipment trusted by law enforcement
Why Equipment Matters
The quality of polygraph equipment directly impacts examination accuracy. The Lafayette LX 7000 provides precise measurements and reliable data collection, ensuring defensible results for all types of examinations.
All equipment is regularly calibrated and maintained according to manufacturer specifications and APA guidelines.
Have Questions About Polygraph Testing?
Contact us for a confidential consultation. We're happy to answer your questions and discuss how polygraph examination can help with your specific situation.