HOW IT WORKS

Contents:

 

THE LIE DETECTOR (POLYGRAPH) EXAMINATION PHASES

A polygraph examination consists of three distinct phases:

I.   Pre-Test Phase (Information Collection, Relevant Questions/Statements Formulation);

II.  In-Test Phase - Polygraph Examination (Chart Collection);

III. Post-Test Phase (Data Analysis, Scoring Procedure).

I. PRE-TEST PHASE (Information Collection, Relevant Questions/Statements Formulation)

During this first phase the examiner will:

  • obtain the examinee’s/client's version of the facts regarding the specific issue under investigation;

 

  • formulate and review with the examinee/client all the questions that will be asked during the polygraph examination.

 

  • provide the examinee with a detailed explanation of the polygraph procedure, as well as the polygraph instrument and its components.

 
 

II. IN-TEST PHASE / POLYGRAPH EXAMINATION (Chart Collection)

The polygraph examination takes place during this second phase. Just before beginning the examination, the blood pressure cuff will be inflated to a pressure of 60 mmHg. The examiner will then ask the examinee the series of questions that were formulated and reviewed during the pre-test interview. This series of questions will be asked a minimum of three times. As the examinee answers the questions, his or her physiological data are continuously collected, measured, and recorded by the polygraph instrument.

The examinee will have a relaxation period of approximately two minutes between each series of questions..

 

III. POST-TEST PHASE (Data Analysis, Scoring Procedure, Results).

During this last phase, the examiner will analyse and evaluate the physiological data by means of scientifically-based numerical quantification system, and will render one of the following results:

     No Deception Indicated: The examinee is telling the truth.

     Deception Indicated: The examinee is not telling the truth.

     Inconclusive: The evaluation of the examinee’s physiological data is inconclusive.

     (less than 5% of all conducted tests).

 

THE POLYGRAPH INSTRUMENT

The computerised polygraph instrument collects, measures, and records physiological data obtained from three major systems in the human body, all of which are controlled by the Autonomic Nervous System.

  • Cardiovascular System: Heart rate, relative blood pressure, blood volume;

  • Respiratory System: Respiratory activity;

  • Electrodermal System: Galvanic skin response, i.e., sweat gland activity.

Following the pre-test interview, the polygraph examiner will place various painless components on and around the examinee’s body, thereby connecting him or her to the polygraph instrument. These components are equipped with sensors that serve to collect the examinee’s physiological data as he or she answers the series of previously reviewed questions during the course of the polygraph examination.

The Sensors:

1) A standard blood pressure cuff applied to the examinee’s upper left arm for the purpose of recording cardiovascular activity;

2) Two convoluted rubber tubes (called pneumographs), placed over the examinee’s chest and abdomen to record respiratory activity;

3) Two small metal plates (called galvanometers), attached to the fingers of the examinee’s right hand to record Galvanic skin response, i.e., sweat gland activity;

 

STIMULATION/CALIBRATION TEST

Before beginning the polygraph examination, the examiner will administer a stimulation/calibration test. The purpose of this test is threefold:

  • To find and fix examinee's physiological baseline at the time of the test through which the expected nervousness or anxiety of the examinee will not affect the test.

  • To obtain adequate tracings of the examinee’s physiology to ensure that he or she is a suitable candidate to undergo a polygraph examination.

 

POLYGRAPH EXAMINATION REPORT

Upon completion of the polygraph examination, the examiner will provide the client with a verbal result. A written verified report, detailing the information received during the polygraph procedure and the examination result, will be sent to the client (at no extra cost) within 24 hours after the test completion.

 
 

SYSTEMS AND METHODOLOGY

All polygraph examinations are administered in accordance with the Code of Ethics and the set of Standards and Principles of Practice required by the American Polygraph Association (APA) - the world's leading association dedicated to the use of evidence-based scientific methods for credibility assessment.

 

Our firm utilizes state-of-the-art digital polygraph systems from Lafayette Instruments (Global leader in polygraph instrumentation) optimized with the last LxSoftwear version 11.8.5.

BOOKING AND CONFIRMATION PHASE

The booking process is automated, secure and designed to take only a few minutes to complete. Once the services of our firm have been retained by clicking on the button ''Book Now'' and paying the required deposit of £150 (Fees and Cancellation policy apply), the requester of the lie detector test (polygraph examination), also referred to as "the client" will receive an email with a link to our pre-examination assessment form which should be filled and submitted online no later than 48 hours after the deposit has been made. 

Shortly after paying the remaining balance for the requested test(s) by using one of our secure payment methods integrated in our form, the client will receive a final confirmation email with the date/time/address of our controlled office location (outside London) where the test will be conducted (except if the client chose his own residential/private address for the test).

IMPORTANT: The client must provide accurate information when filing the pre-examination assessment form as this will serve as the foundation for the polygraph examination.

The formulation of the Relevant Questions/Statements for the polygraph test will be done on the day of the examination during the pre-test interview with our accredited examiner.

The client must establish all case facts to the examiner by way of a full and rigorous investigation.

Accredited. Trusted. Experienced.

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Leading                      Examiners

Professional Lie Detector Test

Customised To Your Individual Needs

Scientific and Impartial Method

We provide the highest standard of truth verification and lie detection services directly from fully qualified, experienced and accredited examiners. Our brand new state-of-the-art computerised polygraph systems allow our examiners to conduct a wide range of customised examinations to assist in establishing the truth and facts regarding issues as Infidelity | Sexual Contact | False Allegations | Theft and more.

Note:  Our company provides only a True Accredited Lie Detector (Polygraph) Services. Any unprofessional requests will result in an immediate ban.

Relationship/Infidelity Polygraph Experts

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Professional Lie Detector Services

All examinations are administered in strict confidentiality at our private offices in 

any location across the UK at no extra cost 

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Infidelity & Sexual Contact Testing

If you suspect that your partner is unfaithful and the trust in your relationship has been compromised, Lie Detector Test is now the most accurate and accessible way to resolve your suspicions. Sample Test Questions.

  • Engaging in Any Sexual Activity

  • Secretly Dating with Anyone 

  • Meeting Anyone from Social Platforms

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 Theft Test

Theft & Loss Prevention Testing

Our accredited and experienced examiners conduct polygraph tests for incidents of monetary theft, theft of jewelry and or theft of any items of value. Tests are constructed around your specific requests. Sample Test Questions

  • Jewelry Theft

  • Monetary Theft

  • Theft of Any Items of Value or Importance

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 False Allegations Test

Prove of Innocence Testing

Whether you are being wrongly accused or require verification and validation of your position, We can issue you an official report detailing the results of your Lie Detector Test which can be used at your discretion. Sample Test Questions

  • Clear Your Name

  • Statement Verification

  • Disprove False Accusations

How Polygraph Helps Our Clients?

How accurate is the Lie Detector Test?


We use a polygraph technique validated by scientific research. According to the American Polygraph Association, researchers conducted 12 studies of the validity of field examinations, following 2,174 field examinations, providing an average accuracy of 95% to 98(see the research).

What can I expect during the Test?

Polygraph Test starts with a pre-test interview where the process is explained, the questions to be asked will be agreed, and you will be able to ask any questions necessary to put your mind at ease. Polygraph examiners are impartial third parties, so you are always treated in a fair, courteous and impartial manner.

Can nervousness or anxiety affect the Test?

Generally, no. The Polygraph Examiner will do everything possible to put you at ease prior to the actual examination by answering all your questions and letting you know what to expect during the test. A certain amount of anxiety is perfectly normal, and will not affect the outcome of the examination.

Polygraph testing, also known as a Lie Detector Test or exam, is a highly effective investigative tool traditionally only utilised by law enforcement and government. However, it is now available to all individuals and private companies. 

Examination Highlights

Duration

 90 min - 120 min

Accuracy

95% to 98%

Questions

up to 3 relevant

It helped us to move forward in our relationship

Thanks very much for conducting the lie detector test for us. We really appreciate your work and time as it helped us to move forward in our relationship. Now we're planning our marriage and our future together

- Mark and Kelsey, Manchester

-   Thoracic Respiration

-   Abdominal Respiration

-   Electrodermal activity (EDA)

-   Blood pressure

-   Anti-countermeasure sensor

Individual Lie Detector Test Includes:

Up to 3 Relevant Test Questions/Statements

Immediate Results after test available

Fully Qualified and Accredited Polygraph Examiner 

Full Written Report included at no extra cost

Same Day Service (based on availability)

Couple or Group testing with over 30% discount - check here

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Our Accreditation & World Class Partners

LieDetect.uk utilizes state-of-the-art digital polygraph systems from Lafayette Instruments

/Global leader in polygraph instrumentation/ optimized with the last LxSoftwear version 11.8.5.

Our polygraph examiners are fully qualified and conducts lie detector /polygraph/ examinations according to strict standards and methods as approved and accepted by the American Polygraph Association (APA) - the world's leading association dedicated to the use of evidence-based scientific methods for credibility assessment.

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We made the online booking process

fast, secure and simple for you

Book Your Test

Proceed to checkout by pressing the

''Book Now'' button and then choose the type of service you'd like to book.

Schedule Online

Reserve the date and time of your test(s).

Fill out all of the required fields, tell us the reason for your request and where you would like your test(s) conducted.

Email Confirmation

Pay the deposit by choosing one of our secure payment methods. Wait for your confirmation email with all the details you need to prepare for your Professional Lie Detector Test.

Contact Us

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Support:

Telephone: 0800 689 0598

Address:

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 London,
EC1V 2NX

Hours:

Available 7 days a week

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Locations:

Home/Office test in any location across the UK

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