How Accurate Are Human Lie Detector Tests?

The accuracy of a polygraph test hinges on two critical factors: the expertise of the examiner and the quality of the equipment. The UK Polygraph Association underscores the necessity for examiners to be rigorously trained and to adhere to approved procedures and scoring systems. Furthermore, the polygraph equipment must meticulously record cardiovascular, respiratory, and electrodermal activity to ensure a valid examination. Unveiling the Numbers: A Glimpse into Research Findings: Research by the American Polygraph Association (APA) underscores the efficacy of polygraph examinations.

Lie Detector Test UK

With state-of-the-art technology and certified examiners, we bring over a decade of expert test lie detection to you.

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Get the Truth with our UK Human Lie Detector Test

Lie Detector Test You Can Trust, Award-Winning Polygraph Examinations

Welcome to Lie Detectors UK, the trusted leader in polygraph testing across the nation. With years of experience and a strong reputation for professionalism, we combine unmatched expertise, cutting-edge technology, and fully accredited examiners to provide accurate and reliable lie detector services you can depend on.

Owned and operated by Jason Hubble, a highly respected director of the UK Polygraph Association, we take pride in delivering a service that is both independent and confidential. Our offices are available 24/7 for your convenience, ensuring we’re here to help whenever you need us. When you choose Lie Detectors UK, you’re working directly with our dedicated in-house team—never through a referral agency—giving you peace of mind and the highest standard of service every time.

Whether you need polygraph services for personal, business, or legal reasons, we are committed to helping you uncover the truth.

Accuracy of the test

How Accurate is a Lie Detector Test?

The accuracy of a polygraph test hinges on two critical factors: the expertise of the examiner and the quality of the equipment. A skilled examiner must not only be experienced but also rigorously trained in the proper administration of the test. They need to follow approved procedures, use standardised questioning techniques, and apply validated scoring systems to ensure reliable results. The UK Polygraph Association highlights these requirements as essential to upholding the integrity of the process. Equally important is the quality of the polygraph equipment itself. Modern polygraph devices must meticulously record physiological responses such as cardiovascular activity, respiratory patterns, and electrodermal activity (skin conductivity). These precise measurements are critical for detecting changes that may indicate deception, ensuring the validity of the examination. Unveiling the Numbers: A Glimpse into Research Findings: Research by the American Polygraph Association (APA) offers compelling evidence about the efficacy of polygraph examinations. Studies have shown that when conducted by trained professionals using high-quality equipment, polygraph tests can achieve an accuracy rate of 90% plus. These findings underscore the importance of combining both examiner expertise and advanced technology to deliver reliable results.

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Our Regional Offices

Registered Office: 6 Buckland Road, Maidstone, Kent ME16 0SL

Head Office
Kent Open 24x7

6 Buckland Road, Maidstone, Kent ME16 0SL

Birmingham Office

Park House, Bristol Rd S, Rubery, Rednal, Birmingham, B45 9AH

Norwich Office

Cavell House & Austin House Stannard Place, St Crispins Rd, Norwich NR3 1YE

Northampton Office

Victory House, Business Park, 400 Pavilion Dr, Northampton NN4 7PA

London Office - Multiple Locations Available

3 More London Pl, London SE1 2RE

Brighton Office

Queensberry House, 106 Queens Rd, Brighton and Hove, Brighton BN1 3XF

Client Feedback

What Our Customers Say About Us

What we offer

Areas of Expertise

We offer a variety of lie detector test services that can help you find the truth so that you can move on with your life.

Business Dispute Resolution

Infidelity Test or Relationship Dispute

Proof of Innocence Test

Pre-Employment Test

Investigations

Theft/Fraud Case

Business Dispute Resolution

Infidelity Test or Relationship Dispute

Proof of Innocence Test

Pre-Employment Test

Private Lie Detector Test

Theft or Fraud Case

Lie Detector Test Price

This all-inclusive price covers every aspect of the test without any additional fees.

Main Office

£399

Deposit £150

6 Buckland Rd, Maidstone ME16 0SL, United Kingdom

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Anywhere Else

£499

Deposit £150

Please review our locations page for areas covered

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Why Work With Us?

Our lie detector test services in the UK are trusted for their reliability, accuracy, and confidentiality. With years of experience, we provide professional lie detection solutions tailored to the needs of individuals, businesses, and organisations.

Lie Detector Tests Process

How It Works?

The lie detector test process begins with a pre-test consultation conducted over the phone, where you’ll have the opportunity to discuss your concerns and understand the steps involved in the testing process. On the day of the test, you’ll attend a comprehensive two-hour session that includes several key components. First, there is an in-depth pre-test interview to gather relevant information and ensure you are comfortable with the procedure. Following this, the polygraph examination is conducted using state-of-the-art equipment to ensure accuracy and reliability. After the test, you will receive a thorough explanation of the results, with the examiner walking you through the findings in detail to address any questions or uncertainties. Additionally, a detailed written report summarising the test and its outcomes will be provided for your records, offering you complete transparency and documentation of the process.

Step 1: Call or Book

To book a Lie Detector Test in UK, you need to make a call or book online on the website.

Step 2: Consultation

One of our professional examiners will get on the call with you and discuss the case.

Step 3: Scheduling

We’ll schedule a time and date and the location at your convenience.

Step 4: Examination

On the scheduled date, the lie detector test takes place. Around 2 hours in total, including the pre test, actual test and the reporting session.

Awards

Included

Features & benefits

Up to 3 Questions

Up to 3 Relevant Test Questions / Statements

We work closely with all stakeholders, including team members, decision-makers, and subject matter experts, to develop thoughtful, fact-driven questions that are both impactful and unbiased. Our approach ensures that every question is carefully crafted to address the core issues at hand, promoting clarity and actionable insights. By keeping the process rooted in data and free from emotional influence, we aim to foster productive discussions and well-informed decision-making.

Same Day Testing

Same Day Testing Based on Availability

Please allow two hours for your appointment to ensure we can provide the most thorough and accurate service. No preparation is required on your part—our experienced team will guide you through each step of the process, answering any questions and ensuring your comfort. However, we kindly ask that you refrain from consuming alcohol or using illegal substances for at least 12 hours prior to the test, as these can affect the accuracy of your results. Once the test is complete, we’ll process your information quickly and ensure your results are available the same day, giving you the answers you need without delay.

Accredited Examiner

Fully Qualified and Accredited Polygraph Examiner

Lie Detectors UK has been proudly recognised as the leading polygraph company in the UK for 2019, 2020, 2021, and 2024, a testament to its unwavering commitment to accuracy and professionalism. Under the expert leadership of Jason Hubble, the highly respected Director of the UK Polygraph Association, the company has gained a reputation for delivering reliable and confidential polygraph services. Known for their cutting-edge technology and expert examiners, Lie Detectors UK continues to set the standard for excellence in the field, serving clients across a wide range of industries and personal matters, from legal cases to private investigations.

Written Report

Full Written Report included at no extra cost

With careful and meticulous analysis, we deliver a comprehensive report that thoroughly evaluates the credibility of each individual’s testimony. Our process involves assessing verbal and non-verbal cues, cross-referencing statements with available evidence, and considering the context in which the information was provided. Our ultimate goal is to determine whether their statements are truthful or deceptive, offering you clear and reliable insights to inform your decisions.

Group testing

Couple or Group testing with discounts

We offer attractive discounts for multiple tests when required, making it more convenient and cost-effective for individuals or businesses needing comprehensive assessments. Whether you’re seeking clarity on various issues or require several tests as part of a thorough investigation, our flexible pricing ensures affordability. Additionally, we frequently conduct group tests for cases such as theft, ensuring that everyone involved is tested while maintaining the highest levels of confidentiality and professionalism throughout the process. Our goal is to provide reliable results in a way that is both accessible and discreet.

Secure 24/7 Booking

Secure 24/7 Booking Easy Scheduling

The test is available for £399 at our Kent HQ or £499 at any location across the UK, whether that’s your home, a nearby office, or any convenient space of your choice. Both options come with all-inclusive pricing, meaning there are no hidden fees or unexpected costs, offering complete transparency and simplicity. With our flexible options, you can choose the setting that works best for you while enjoying the same high-quality service and care.

Things to know

Frequently Asked Questions (FAQ)

What is a Lie Detector test?

Graph tests are a form of psychological assessment designed to gauge an individual’s truthfulness by evaluating their physiological responses. These tests measure indicators such as heart rate, blood pressure, and respiration, under the premise that lying triggers heightened physiological reactions.

Lie Detector test accuracy?

The accuracy rate of a single issue test is 92%-94% approximately.

Can a Lie Detector test prove my innocence in the UK?

When falsely accused, a lie detector test becomes an invaluable asset, extending the means to vindicate oneself and establish unwavering innocence.

Can an innocent person fail a Lie Detector Test?

When someone tells the truth, the chances of them failing the test are exceedingly slim.

What does a Lie Detector test do?

The process is straightforward – we pose a series of questions and carefully monitor your physical responses during your answers. Through meticulous analysis, we provide a comprehensive report on the accuracy of each individual’s testimony. Determining whether they speak the truth or are deceitful becomes our objective.

Why do people fail Lie Detector tests?

The primary and singular reason for test failure lies in individuals either being untruthful or concealing important information.

How long does a Lie Detector test take?

Please allow two hours.

How much Is a Lie Detector test?

Our pricing can be found here.

Why Is a non-refundable deposit required?

Due to the nature of our business, we kindly request a non-refundable deposit of £150 to secure your appointment. This helps us ensure your reservation with us.

How do I prepare for a Lie Detector test?

You don’t need to prepare as we will guide you, no alcohol or illegal drugs 12hrs before a test.

Is there a minimum age limit for anyone taking a Lie Detector test?

Yes 18 years old.

What kind of questions are asked on a Lie Detector test?

We work with all parties to develop suitable questions that work, questions need to be based on fact and not on emotions. A test will usually comprise of three relevant questions asked over multiple charts.

How do you stay calm during a Lie Detector Test?

Polygraph tests are a product of extensive research and diligence, rendering them among the most reliable methods for detecting deception worldwide. If you are truthful, there is no need for apprehension.

Does being nervous affect Lie Detectors?

Its perfectly normal and expected to experience some degree of anxiety during a test.

Will I feel pain during a test?

There’s nothing that can cause you any pain. The worse feeling you may encounter is the blood pressure cuff as its inflated.

Can you cheat a Lie Detector test?

Yes absolutley, but a qualified examiner will catch you easily.

How do I know if I passed my Lie Detector Test?

When the test is completed, we will furnish you with a comprehensive report derived questions posed and your corresponding answers.

Can Lie Detector results be used in court?

Take legal advice here.