The Lie Detector Testing Services based in London, offered by Private Eye is reliable, scientific, state of the art and a highly accurate service. A Polygraph Test is commonly known as a Lie Detector Test, however it may be more relevant to see it as a ‘Truth Verifier’ Test, which is a tool used to get to the truth efficiently and reliably. Polygraph Testing fully complements our other investigation services.
A polygraph test can be used as an investigative tool to detect dishonesty and innocence, to determine who may be implicated and to identify those who may be involved. Polygraph shortens the investigative process, saving time and money.
The purpose of a professional polygraph examination is to verify the truth of a specific statement, however it is a valuable tool in on-going investigations.
Polygraph testing should be administered in a low profile, friendly and non-accusatory interview process. Our discretion and professionalism can be relied on for excellent results.
A polygraph is a scientific instrument that measures someone’s physiological responses when answered a series of pertinent questions. During questioning the polygraph instruments records deviations and/or increases in responses such as blood pressure and pulse levels, respiration and skin conductivity on the basis that false answers will cause such deviations.
Extensive research has found computerised polygraph testing to be 98% accurate, making it an invaluable tool for companies and private individuals. Polygraph tests (lie detection tests) can be used to detect both dishonesty and innocence and can help to expedite an ongoing investigation.
In order to ensure the highest possible accuracy, Private Eye London uses the latest polygraph technology and highly qualified, professional and experienced examiners who carry out the tests in your own home or office. All our examiners are members of the American Polygraph Association and the prestigious British and European Polygraph Association.
Taking two to three hours, the test is thoroughly explained to the subject through each stage of the process in a straightforward and direct way, and the examiner also fully explains how the results and analysis will be reported. Polygraph tests have many different uses, from uncovering cheating partners and addressing accusations to pre-employment screening and in corporate theft cases. Whether the arena is domestic or marital, criminal or corporate, a polygraph test is valuable wherever there is a quest for the truth.
Our polygraph experts are highly discreet and test in a very ethical manner. And just as with all facets of our business, we are committed to providing you with a professional service and delivering outstanding results at highly competitive prices. Find out more about our Polygraph Testing service with our FAQ below.
Q. How accurate is the polygraph?
A. The polygraph technique is very accurate, however, it is not infallible. According to the American Polygraph Association, over 250 studies have been conducted over the past twenty five years on the accuracy of polygraph testing. It is estimated that the accuracy of the results is in the range of 90% - 95%. More recently, research has shown that the accuracy of computerised polygraph testing is 98%.
Q. Is the polygraph like the lie detector?
A. Yes. The polygraph instrument is a scientific, diagnostic instrument which is often called the "lie detector". It would be more appropriate, however, to call it the "truth verifier".
Q. I am telling the truth but I am nervous about taking a polygraph examination. How does the polygraph establish the difference between the state of nervousness and reactions as a result of lying?
A. It is quite normal for an innocent person to feel nervous and the polygrapher is very aware of this. Nervous reactions which are recorded on the polygraphic charts are not interpreted by the polygrapher as a manifestation of deception. Nervous reactions are completely different from those reactions that are recorded when a person is deliberately lying.
Q. How long does a polygraph examination take?
A. The polygraph examination takes about two to three hours, however, some may take more or less time, depending on the nature of the issue under investigation.