Lie Detector Test
Best Articles & Resources
2010 – 2018
Yes, I’m well aware that we as examiners want to bury the term “Lie Detector” in favour of “Truth Determinator, or “Truth Determination,” and for the record, I am completely in agreement with that side of the team. I still cringe when someone from the public calls it...read more
Polygraph Instrument or Polygraph Machine? This article is in response to Director Raymond Nelson’s article published in the Sept/Oct APA Magazine. I commend Ray’s scholarly and dedicated contributions to the APA and the polygraph profession before expressing my...read more
Being aware of the human ability to deceive along with the human inability to detect it, ancient courts and legal systems relied heavily upon trials by ordeal. The ordeals subjected the accused to all different physical tests and endurance’s. Surviving the ordeals was...read more
Lie Detector testing equipment can be either analog or computerized (digital). Both systems allow the examiner to view the results while conducting the examination. The advantage of the computerized system is that the software can analyze the subject's responses in...read more
The polygraph, sometimes (and arguably erroneously) called a lie detector test, is an instrument designed to enable a polygraph examiner to determine the veracity of a person’s statement regarding a specific issue. It does this by measuring selected physiological...read more
Since 1947 when the comparison question was first integrated by John Reid into the test format it became the key target of anti-polygraph criticisers. Not surpris-ingly, the Comparison (control) Question Techniques also happens to be the test technique most frequently...read more
The qualification of polygraph examiners is one of the most important factors that in-fluence the efficiency of polygraph usage in Russia and all over the world. Regardless of apparent simplicity of principles, underlying polygraph testing, its effec-tive use is...read more
Trust is the most important factor in a relationship. Almost every relationship is based on trust and once the trust of the other person is lost, the relationship fails. No matter how hard you try to make things work, the relationship cannot survive without trust. It...read more
The term polygraph – literally meaning “many writings” – pertains to the method of simultaneously recording various physiological activities and observing any pattern changes in them. Those who wish to determine the truth behind a statement will often rely on a...read more
Most people know about the use of lie detectors to detect deception. However, many may have a limited perception as to the range of purposes they can be useful for. Cases When Lie Detection Tests are Used Resolution of Criminal Cases Lie detection systems are most...read more
The Facts You Need to Know about Lie Detectors and Their Reliability There are times when you need to ascertain if somebody is telling the truth or not. There are people who are good at telling lies. Sometimes, there are also cases of one person’s word against...read more
Lie detector testing is a method that is commonly used to arrive at the truth when something is being investigated. While the validity of the polygraph tests is still up for debate, modern technology has made it possible for these lie detector tests to yield more...read more
Polygraph tests are not things to make fun of. Lie detector testing is the process of verifying the truthfulness of statements made by persons of interest. These statements are often part of an investigation and it is important that lie detector tests establish the...read more
Lie detector tests are vital to various departments and institutions because of their capability to prove the innocence – or guilt –of an individual. The results may not be acceptable evidence in court, but they can turn tables and influence people. It captures...read more
Lie detector tests are often portrayed in film and television as a method by which truth is extracted from the person taking the witness stand. In these shows, the wires attached to the perpetrator’s body is also connected to a machine, which etches a couple of lines...read more
The polygraph test, also known as lie detector test, is a method by which a person’s physiological indices are measured and recorded while being asked a series of questions. These indices include, but are not limited to, blood pressure, pulse, respiration, and skin...read more
In a dark room with several lights glowing, there sat a tall, lanky guy. There were several wires hooked to him while two men in uniform hawked around him. ‘Did you steal the money inside the vault?’ sternly asked the taller guy in uniform. The tall, lanky guy sweated...read more
Who hasn’t watched a crime movie or drama without seeing a polygraph? The lie detector test and the polygraph machine have become all too familiar in today’s pop culture. They are no longer just used in criminal investigations but also in movies, dramas, and even game...read more
That question is almost inevitable while one writes about polygraphs. While some claimed that a certain percentage of those who failed the lie detection test actually confessed to those crimes subsequently, statistics have shown that their use can be relied on. Lie...read more
A lie detector test or more commonly known as a polygraph test is used to record the differentiation in the physiological state of a human being while answering structured questions. Physiological indices like respiration, pulse and blood pressure are recorded through a lie detector and analysed during a question-answer session. A lie is detected as soon as the physiological responses deviate from the normal responses the test subject gave.
The use of polygraph (Lie Detector) has expanded over the years from the public to private investigations. Not only has it been portrayed as a cultural icon in advertisements and crime dramas, the polygraph is widely recognized by masses all around. The idea of recognizing deception through a machine has inspired millions to find the veracity in critical situations. Resolving matters like cheating partners, fraud and reasonable crime suspicions has been accredited to a lie detector many times.
Even though many psychologists have developed significant controversies towards the authentication of a polygraph test, the demand for lie detection is still quite overwhelming. This lie detector test consists of a test subject and an examiner/analyst who records and analyses data from the lie detector. Contrary to early age practices, modern technology is used to record the psychophysiological changes in the present time. However, there has been diminutive development in the questionnaire structure asked from the test subject.
In a standard situation, the test subject is asked questions in the pattern of a Control Question Test (CQT) where responses to relevant questions are compared to the “control” questions. The relevant questions are directed towards the main issue and the control questions concern a broader aspect of the investigated offence. If greater responses to relevant questions are recorded against control questions, deception is established. An inconclusive test result may occur when no difference in responses is recorded.
After years of experience in collecting polygraph data from people with different backgrounds, mind-set, habits and experiences have enabled examiners to develop their lie detection techniques. Young lie detection analysts have limited expertise to offer as compared to experienced examiners who can verify responses of different test subjects according to their developed verdicts. Spending time in understanding dissimilar responses of various people is essential to institute the notion that standard responses may not apply to all individuals. Lie detection has heavily relied on systematic psychological functioning and has failed to develop on how deceptions differ person to person.
Regardless of the anomalies in lie detection tests, we offer polygraph testing through highly experienced examiners and conclude the most relevant judgements required!
Despite the hefty criticism against polygraph testing, it has solved various crime related misperceptions and has provided acknowledgeable results over time. In the same custom, we believe in providing the best polygraph testing in the USA . Feel free to contact us for a lie detection test.