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 examiner, to …

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

Confidential, ethical polygraph testing by a certified examiner with over 25 years of experience. Serving attorneys, law enforcement, and private clients across Central Indiana.

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 or deceptive. It’s …

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 …

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 instrument that …

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 person’s …

Jun 29, 2022 · When people lie, their bodies tend to react in detectable ways. Polygraphs measure physiological changes in the cardiovascular system, breathing, and sweating. By comparing the …

Polygraph analysis, commonly referred to as lie detection, is an interrogation technique that measures physiological responses—such as heart rate, blood pressure, and sweating—to determine whether …

Oct 26, 2025 · Discover trusted and confidential Lie Detector Test services near you. Our certified polygraph examiners offer accurate and discreet testing for personal, legal, or employment needs. …