The Preliminary Credibility Assessment Screening System, or PCASS, captures less physiological information than a polygraph, and uses an algorithm, not the judgment of a polygraph …

The American Polygraph Association, established in 1966, is the largest polygraph association consisting of examiners in the private, law enforcement, and government fields.

Aug 5, 2004 · During a polygraph test, an interviewer or interrogator asks the subject a series of questions designed to elicit truthful answers and lies, then measures physiological changes in …

Mar 26, 2025 · The polygraph is a tool commonly used in law enforcement to test whether defendants, witnesses, and other individuals who are party to a criminal case are being truthful …

Denver Polygraph provides professional, certified, polygraph exam services for government agencies, therapists, attorneys, as well as private clients. Contact Denver Polygraph today for …

Book a private lie detector test with our trusted polygraph experts across Colorado. Our polygraph tests offer accurate, confidential results for personal, legal, or professional needs.

Polygraph testing, commonly referred to as lie detection, is a method that measures physiological responses to questions in an effort to determine the truthfulness of a subject's answers.

A polygraph test works by measuring someone’s physiological responses, which are believed to change when a person is lying. The polygraph, often referred to as a lie detector, is an …

Aug 10, 2025 · Polygraph tests, often called “lie detector tests,” measure and record physiological indicators while an individual answers questions. They aim to assess the truthfulness of a …

What is a polygraph? The term "polygraph" literally means "many writings." The name refers to the manner in which selected physiological activities are simultaneously recorded. Polygraph …