Lie Detector Test In Cardiff

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Cardiff Lie Detector Test

10 Things to consider before taking a Lie Detector Test in Cardiff with Lie Detectors UK who were awarded The Best Polygraph Testing Company in the UK and are owned by the Director of the UK Polygraph Association. Tests are £399 at the HQ Office and £499 in Cardiff.

1. Understanding the Purpose of a Cardiff Lie Detector Test

A Polygraph, or Lie Detector Test, identifies deception by detecting physiological changes. This instrument records and quantifies physiological reactions in response to a series of formulated questions. Cardiff’s Lie Detectors UK, an award-winning and approved Lie Detection company, exclusively employs qualified APA and UKPA Examiners.

2. The Mechanics of Polygraphy

Polygraphs monitor physiological changes, including blood pressure, sweat gland activity, blood flow, and upper body movement. Examiners compare reactions to different questions during multiple tests, assessing truthfulness or deception. Test results are provided in a report by a qualified Lie Detectors UK examiner.

3. Assessing the Accuracy of a Cardiff Lie Detector Test

Scientific studies reveal that when conducted by certified APA examiners using advanced equipment and techniques, a single-issue test using the Utah technique achieves 92% to 95% accuracy. Some studies suggest even higher accuracy levels.

4. Cost of a Cardiff Lie Detector Test

Lie Detector Test costs with Lie Detectors UK range from £399 to £499, depending on the test location. Prices are fixed and inclusive. A deposit is required upon booking, with the balance payable on test day. Subsequent tests receive significant discounts.

5. Question Selection and Rationale

We begin with a phone discussion to assess the suitability of a Polygraph Test for your situation. Our most accurate technique involves three closely related questions on a single issue, ensuring maximum accuracy. We focus on fact-based inquiries and avoid emotional or intent-based questions. Examiners in Cardiff also consider potential explanations if a test is failed.

6. Questioning Strategies in Lie Detector Tests

During a Cardiff Lie Detector Test, the examiner poses three types of questions: directed lie comparison, irrelevant, and relevant. These questions follow accuracy guidelines, and clients have input in their development.

7. Pre-test Interview Process in Cardiff

Before the Lie Detector Test in Cardiff, a pre-test interview, lasting up to an hour, takes place. The examiner discusses the case, explains the process, and addresses client questions. A basic Polygraph Test is conducted to familiarize the subject. This allows minor adjustments for improved chart readings. A comprehensive review ensures question clarity and subject understanding.

8. Data Collection and Analysis in Cardiff

Each subject undergoes a minimum of three chart runs with repeated questions in different orders. An average result is derived, followed by a comprehensive analysis by the Cardiff Lie Detector Examiner. Results include No Deception Indicated (Pass), Deception Indicated (Fail), or the rare Inconclusive result. Results are communicated verbally and through a three-page report, available on request.

9. Age Requirements and Pregnancy Considerations

The minimum testable age is 14. For those under 18, full parental consent is essential, with maturity assessment. Pregnant individuals may take the test, provided there are no complications.

10. The Evolution of the Polygraph

In 1906, Scottish Surgeon James McKenzie invented the Lie Detector test, emphasizing heart rate and sweating. In 1921, American Police Officer John Larson developed an improved Polygraph instrument for forensic use. In 1925, Leonarde Keeler enhanced Larson’s equipment by replacing smoke paper with ink pens.

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Accurate Results From a Lie Detector Test in Cardiff

Precision of a Cardiff Lie Detector Test Polygraph tests yield up to 95% accuracy when conducted with the appropriate equipment, examiner, and question formulation. Lie Detectors UK exclusively employs the single-issue method to maximize accuracy. Accuracy may be compromised by improper questions, unqualified examiners, outdated equipment, or unsuitable testing environments.

Nervousness vs. Guilt in Lie Detector Tests Nervousness doesn’t equate to guilt. Subjects may experience nervousness throughout the test, but the focus is on reactions to questions, not anxiety. Pass rates remain around 80%. Our Cardiff Polygraph Examiner ensures a comfortable testing experience.

Control Question Test in Cardiff Cardiff’s Lie Detectors UK Examiners utilize the Control Question Test as a physiological baseline. Control questions establish correlations with relevant ones to detect deception. The Directed Lie Approach guides question selection, with thorough discussion before the Polygraph Test in Cardiff.

Lie Detector Test - Alternatives

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Understanding Eye-tracking

Eye-tracking measures pupil dilation, with an 85% accuracy rate but requires strong reading skills. It assesses truthfulness based on small eye movements within the pupil.

Voice Stress Analysis

Voice Stress Analysis, once used, is now considered unreliable. It examines variations in voice intensity, frequency, and pitch.

Brain Observations

Functional magnetic resonance imaging (fMRI) gauges brain oxygen utilization to identify deception. However, reliability has been questioned.

Nonverbal Behaviour

High-speed cameras capture micro expressions or involuntary facial expressions. While they can indicate truthfulness or deception, their reliability varies in case studies.


Historically, truth drugs like Ethanol, Sodium Thiopental, and Cannabis were used to extract information without consent. However, no single substance universally works for all cases.

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Choosing A Reputable Lie Detection Company

What to Consider When Choosing a Cardiff Lie Detector Service When hiring a company for a Lie Detector Test in Cardiff, focus on these key points. First, ensure the examiner’s qualification by verifying their membership with the American Polygraph Association and the UK Polygraph Association.

Qualified Examiners at Lie Detectors UK All our examiners are Advanced APA Examiners, updated with the latest training and equipment. Our transparent processes and commitment to professionalism make us a trusted choice. We offer tests at our office, your residence, or a nearby rented office. Contact us at 0207 859 4960 to discuss your case with an Examiner and determine if a Cardiff Lie Detector Test suits your needs.

Frequently Asked Questions

UK Courts don’t currently accept private Polygraph Examiner reports, although the UK Government employs over 40 Polygraph Examiners for probation and terror suspects. We primarily serve private and business clients in the UK and abroad, focusing on relationships, allegations, theft, and pre-employment cases.

A Polygraph, or Lie Detector, records physiological autonomic responses, including blood pressure, pulse, respiration, skin conductivity, and movement, to questions.

No, there’s no pain during a Cardiff Polygraph Test. Some minor discomfort from the blood pressure cuff may occur, but each test lasts only three to four minutes.

The duration, typically around two hours (but no less than ninety minutes), depends on circumstances. It involves three phases: pre-test, examination, and post-test.

Results are verbally provided immediately after the test if a second opinion isn’t required. A full report is then delivered via email or printed, depending on preference and location.

Booking in Cardiff is quick and confidential. We prefer to speak with you before booking to ensure test suitability. Pay a non-refundable £150 fee to confirm your appointment, including the examiner’s details. Booking is also available on our website.

Cost isn’t linked to the number of questions. We prioritize single-issue tests for maximum accuracy. Reducing questions doesn’t reduce costs significantly, as multi-issue tests are far less accurate.

We request a non-refundable £150 deposit to secure your commitment to the Cardiff Lie Detector Test. It allows us to reserve your time slot and make necessary arrangements. The remaining payment can be made on the test day, with card payment options.

Our pricing is transparent: £399 all-inclusive at our head office and £499 elsewhere. Additional tests receive discounts. Relationship testing constitutes over 70% of our work, while allegations, theft, and pre-employment testing make up the rest.


Maria Neophytou
Maria Neophytou
We went yesterday and saw Jason, lovely man x He went above and beyond to help us x Very professional can not recommend him enough, explained everything to us so thoroughly and really made us feel at ease and we got the outcome we wanted x Thank you so much Jason.
Bart McClaran
Bart McClaran
So glad I chose Lie Detectors UK to prove my innocence, thanks Jason for making a highly stressful situation much easier.
Kate Fairs
Kate Fairs
I never thought I'd be put in a position to have to do a lie detector test but after 6years of being accused of cheating I decided to do the test for my own peace of mind. I had visions of the jeremy Kyle show but everything was explained to me and Jason put me at as much ease as he could. After getting the true result I wanted it cleared my name and made me realise the whole issue was deeper within my partner as he made every excuse to not believe the test. The test is 100% accurate as I could not control what my body was doing it will only give a result of lying if you are lying. Jason was brilliant with aftercare to myself and my partner and I cannot thank him enough for what he done. Finally i have closure that I needed and I recommend anybody to do this test and with this company if you are ever in that position I found myself in!
Lee Cutmore
Lee Cutmore
Got in touch to ask about taking a lie detector test due to problems within a relationship I was part of. Jason was great with comms, honest and sincere after I explained my predicament to him. His honesty stretched to the point where we both agreed that taking the test wasn’t in my best interests due to the circumstances I am in and for me that’s highly commendable. Thank you Jason, integrity is high on my agenda and I can safely say it is on yours too after our recent comms.
Darren Holloway
Darren Holloway
Could not have been any happier with the service. Jason was informative and friendly from the off and did everything he could to make everybody feel comfortable and at ease. Had five people in total we wanted testing and he found the guilty party in two. Would highly recommend this exceptionally professional service to anybody needing it.
TML Cars
TML Cars
Jason is extremely professional would recommend to all.

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Cardiff Lie Detector Test Near Me

Book your Lie Detector Test today and arrange for your free consultation with our examiners. Our Lie Detector Tests can be carried out at your home address or at an office location to suit you. You can hire our award winning APA /UKPA Advanced Examiners services of Lie Detectors UK in Cardiff via phone at 0207 859 4960 or via email at info@liedetectors– or see our contact us page by clicking here.

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