There’s a lot of misinformation surrounding polygraph machines (also known as lie detector tests). The process is often misrepresented in the mainstream media, especially when used in film. In reality, professional polygraph examiners don’t consider themselves “lie detectors”. However, experienced examiners like ours (with nearly 30 years of experience) become experts at distinguishing honesty from deception. We can tell you with 80% accuracy or more if a subject is attempting to deceive with their answers.
Polygraph tests are trusted by the U.S. Supreme Court and lower level courts as well. There are various techniques, but the most accurate is the “control question technique”. CQT carries an 87% success rate; nonetheless, it’s critical to understand that a definite decision on truth and lies is not provided. Rather, we can tell you the likelihood that a particular answer was untruthful and if we found the answer to be deceptive.