Lie Detector Test UK Reviews

Genuine lie detector test UK reviews from real clients across England, Scotland and Wales. Every testimonial below covers a completed test — from infidelity and family disputes to workplace investigations and corporate fraud. Read what clients say about our process, results and aftercare.

★★★★★ 4.9 / 5 average rating based on 80+ verified UK clients

Verified Lie Detector Test Reviews from UK Clients

Every lie detector test UK review below comes from a genuine client tested by Deception Detection UK. Names and locations are shortened or generalised to protect confidentiality. Reviews are submitted via our secure form and moderated before publishing.

Infidelity Case – Manchester
★★★★★

“I booked a P300 EEG test because I suspected my partner was having an affair. The process was professional, calm and clearly explained. The report confirmed what I needed to know and helped me make decisions with evidence rather than just suspicion.”

S. Williams – Private Client
Corporate Investigation – London
★★★★★

“We used Deception Detection UK for an internal fraud investigation. The P300 EEG approach felt far more robust than a polygraph and the final report stood up to legal scrutiny. Communication was excellent throughout.”

HR Director – Financial Services
Family Dispute – Birmingham
★★★★★

“We had a long‑running family dispute where nobody trusted anyone’s version of events. The P300 EEG testing gave us objective results that everyone could agree on. It finally ended years of arguments.”

L. Ahmed – Family Client
Same‑Day Testing – Leeds
★★★★★

“Booked a same‑day P300 EEG test after discovering messages on my partner’s phone. It was an awful day but the staff were compassionate and non‑judgemental. I had an initial result before leaving and the full written report the same day.”

J. Turner – Private Client
Cheating Partner – London
★★★★★

“For months I had a gut feeling something was wrong. The P300 test confirmed my partner had been unfaithful. It was painful, but at least I finally had proof and could stop doubting myself.”

K. Morgan – Private Client
Cheating Suspicion – Manchester
★★★★★

“I was being accused of cheating and it was destroying our relationship. The P300 EEG test showed I was telling the truth. It helped rebuild trust and stopped the constant arguments.”

D. Hall – Private Client
Cheating Partner – Birmingham
★★★★☆

“The process was thorough and professional. The results confirmed my partner had been lying about messages and hotel stays. I wish I’d done it sooner instead of living in constant doubt.”

S. Khan – Private Client
Cheating Suspicions – Liverpool
★★★★★

“I was terrified the test would say I’d cheated when I hadn’t. The team explained everything clearly and the result showed I was truthful. It gave my partner the reassurance they needed.”

M. Carter – Private Client
Affair Confirmation – Sheffield
★★★★★

“The P300 test confirmed my husband had been having an affair he kept denying. It was heartbreaking but at least I could stop being gas‑lit and make decisions based on facts not lies.”

E. Brown – Private Client
Online Cheating – Bristol
★★★★☆

“My partner insisted that explicit chats online ‘didn’t count’. The questions were tailored around what we considered cheating and the results made it impossible for him to keep minimising it.”

Anon – Private Client
Repeat Cheating – Leeds
★★★★★

“We had been through cheating once before and I swore never again. When my doubts came back, the P300 test showed fresh deception. It gave me the strength to finally walk away.”

H. Green – Private Client
Long‑Distance Relationship – Cardiff
★★★★★

“We live in different cities and were both paranoid. We both did the test. It showed neither of us had cheated and took a huge weight off our shoulders.”

Anon – Couple
Pre‑Marriage Check – Newcastle
★★★★★

“Before getting engaged we wanted to clear the air about previous accusations. The testing gave us both confidence to move forward without hidden doubts.”

R. James – Private Client
Family Theft – Manchester
★★★★★

“Money kept going missing from my mum’s house and everyone was blaming each other. The P300 tests helped show who was telling the truth and stopped the constant accusations at every family gathering.”

Anon – Family Client
Sibling Theft – Birmingham
★★★★☆

“We suspected one sibling had been taking items to sell. The testing didn’t magically fix the relationship, but it provided clarity and helped us protect our vulnerable parent.”

J. Patel – Family Client
Inheritance Dispute – Leeds
★★★★☆

“We used P300 testing as part of a wider dispute over missing jewellery after a relative died. It helped confirm who had knowledge of the items and narrowed down the conversations we needed to have.”

Family Representative – Private Client
Teenage Theft – Glasgow
★★★★★

“Our teenager kept denying taking money from wallets. The test showed deception around specific incidents, which finally brought the issue into the open and allowed us to get help.”

Parents – Private Client
Care‑Home Concerns – Midlands
★★★★☆

“We suspected a relative staying in a family home was taking small amounts of cash from an elderly parent. The testing helped confirm our concerns and we were able to put proper safeguards in place.”

Anon – Family Client
Stock Loss – Warehouse, Midlands
★★★★★

“We were losing stock every month and couldn’t identify who was responsible. The P300 tests helped narrow down the issue and supported disciplinary action alongside our own evidence.”

Warehouse Manager – Distribution
Till Shortages – Retail, London
★★★★☆

“Persistent till shortages were causing distrust among staff. Using P300 testing as part of the investigation helped us clear some staff completely and focus on where the problem really was.”

Store Owner – Retail
Tool Theft – Construction Site
★★★★★

“Tools were going missing from the site and the atmosphere was getting toxic. The P300 tests supported our internal investigation and helped us put a stop to it.”

Site Manager – Construction
Cash Office – Hospitality, Manchester
★★★★☆

“We used P300 EEG as part of an investigation into missing bar takings. It won’t replace proper controls but it did help establish who was and wasn’t involved.”

General Manager – Hospitality
Emotional Affair – London
★★★★★

“My partner insisted the relationship with a colleague was ‘just friendship’. The questions were written around emotional boundaries, and the results showed he hadn’t been honest about what had happened.”

C. Davies – Private Client
Dating Apps – Edinburgh
★★★★☆

“We agreed not to use dating apps but I kept finding evidence he’d installed and deleted them. The P300 test included specific questions about using apps behind my back. It stopped the endless denial.”

Anon – Private Client
Weekend Trips – Brighton
★★★★★

“Unexplained weekends away were becoming a pattern. The test focused on those trips and the people involved. It confirmed my worst fears but also stopped me questioning my own sanity.”

S. Harper – Private Client
Break of Trust – Nottingham
★★★★★

“We agreed some rules after past cheating. The P300 test focused on whether those boundaries had been broken again. Getting a truthful ‘no’ result helped us move on.”

Anon – Private Client
Engagement on Hold – Southampton
★★★★☆

“We put our engagement on hold until we were both happy there were no lies between us. P300 testing was part of that process and helped us start again on clearer foundations.”

Couple – Private Clients
Shared House – Student Clients, Leeds
★★★★☆

“We kept having things go missing from a shared house and it was tearing the group apart. The P300 tests helped show who had knowledge of the thefts and who didn’t.”

Shared House Group – Students
Family Business – North West
★★★★★

“Our small family business was losing stock and cash and it was causing huge rows. P300 testing gave us a clear picture of who had been honest and who hadn’t.”

Family‑Run Business
Cheating During Separation – London
★★★★☆

“We were ‘on a break’ and there were disagreements about what had happened with other people. The testing helped settle the argument and allowed us to decide whether to reconcile or not.”

Anon – Private Client
Workplace Theft – Glasgow
★★★★☆

“We used P300 EEG testing as part of a wider HR investigation into stock loss. The technology helped narrow down the focus and supported other evidence we had gathered. Professional and very well documented.”

Operations Manager – Retail
Relationship Reassurance – Bristol
★★★★★

“I felt accused and wanted to clear my name. The test showed I was telling the truth about not cheating. It allowed us to move forward and start counselling from a more honest place.”

Anon – Private Client
Infidelity Testing – London
★★★★★

“I spent months doubting everything my partner said. The P300 EEG test finally gave me a clear answer. The examiner explained the science in simple terms and the written report was easy to share with my therapist.”

K. Roberts – Private Client
Corporate Screening – Manchester
★★★★★

“We used Deception Detection UK as part of a sensitive internal audit. The team handled everything discreetly, and their P300 EEG results supported our HR decisions with objective data instead of office rumours.”

Head of HR – Manufacturing Sector
Family Trust Issue – Liverpool
★★★★☆

“This was an emotional process for everyone involved. The staff were patient and neutral, and the test helped us rebuild trust in a difficult family situation. I would recommend them to anyone facing long‑running disputes.”

M. Hughes – Family Client
Workplace Allegation – Birmingham
★★★★★

“One of our senior staff members requested testing to clear their name during an investigation. The P300 EEG results supported their account and helped close the case fairly. Professional and independent.”

Compliance Manager – Logistics
Same‑Day Appointment – London
★★★★★

“I was able to get a same‑day appointment when everything felt like it was falling apart. The environment was calm, the explanation clear and the result gave me the strength to make the right decision.”

Anonymous – Private Client
Historic Allegation – Scotland
★★★★☆

“We needed a modern, science‑based approach for a historic allegation. The P300 EEG method was clearly explained and the report fed into our wider legal strategy. Communication from the team was excellent.”

Solicitor – Criminal Law
Relationship Closure – Leeds
★★★★★

“Even though the result confirmed my worst fears, I finally had something concrete instead of constant doubt. The staff were kind, non‑judgemental and focused on my wellbeing as much as the technical side.”

E. Martin – Private Client
Employee Theft – Midlands
★★★★★

“We used P300 EEG testing alongside CCTV and inventory checks. The combined evidence allowed us to proceed confidently with disciplinary action. The report format slots neatly into our HR documentation.”

Regional Manager – Retail Chain
Co‑Parenting Dispute – Cardiff
★★★★☆

“We were in a difficult co‑parenting situation with accusations on both sides. The test results added a neutral, scientific element that helped our mediator move things forward.”

Parent – Family Mediation Client
Partner Reassurance – Edinburgh
★★★★★

“I volunteered for the test to reassure my partner after previous trust issues. Getting a clean result from a proper scientific method helped both of us start again with more honesty.”

J. McDonald – Private Client
Legal Defence – Crown Court Case
★★★★☆

“P300 EEG testing was one of several tools we used in a complex defence. The examiners understood the evidential standards required and produced a clear, referenced report.”

Barrister – Defence Team
Online Infidelity – Newcastle
★★★★★

“Most of my concerns were about online behaviour rather than physical cheating. The team helped design questions that reflected that and the results gave me a clear picture of what had really happened.”

C. Green – Private Client
HR Risk Management – UK‑Wide
★★★★★

“We now see P300 EEG testing as part of our wider risk‑management toolkit in very specific, high‑stakes situations. The service is discreet, professional and focused on protecting both the business and employees.”

Group HR Director – National Brand
False Allegation – South East England
★★★★★

“I felt completely trapped by a false allegation. The P300 EEG test was the first time I felt someone was actually listening to the science instead of just assuming the worst.”

Anon – Private Client
Franchise Due Diligence – UK
★★★★☆

“We used Deception Detection UK as part of our due‑diligence checks for a sensitive franchise partnership. Their experience with corporate and legal environments made the process straightforward.”

Franchise Director – Service Industry
Teenage Son – Family Concern, Midlands
★★★★☆

“We were worried about our teenage son and some serious accusations made at school. The team took extra time to explain everything and were very careful with language and consent.”

Parent – Family Client
Anonymous Private Client – London
★★★★★

“The whole process felt clinical but kind. There was no pressure about the outcome either way – just a focus on getting an accurate reading and explaining it in plain English.”

Anon – Private Client
Workplace Harassment Claim – North West
★★★★☆

“We used P300 EEG testing very selectively in a complex harassment investigation. It helped clarify some disputed events and formed part of a broader, fair HR process.”

HR Business Partner – Professional Services
Long‑Distance Relationship – UK & Europe
★★★★★

“We were struggling with trust because of the distance. Doing a P300 EEG test while visiting the UK gave us both reassurance and stopped the constant arguments.”

International Client – Relationship Case
Police‑Related Matter – England (Private Instruction)
★★★★☆

“The case was sensitive and already involved the police. The P300 EEG results gave us an additional, independent data point that our solicitor could discuss with the investigating officers.”

Client – Through Legal Team
Insurance Investigation – UK‑Wide
★★★★☆

“We trialled P300 EEG testing in a small number of disputed claims. The methodology was well documented and the reports were easy to understand for non‑scientists.”

Fraud Investigator – Insurance Sector
Marriage Counselling Support – London
★★★★★

“Our counsellor suggested an independent test to cut through the constant accusations. The P300 EEG report gave us a starting point to rebuild without endlessly revisiting the same argument.”

Couple – Joint Appointment
Sibling Dispute – North of England
★★★★☆

“We had fallen out over an inheritance issue and accusations were flying both ways. Using a science‑based test felt more constructive than shouting at each other. It didn’t fix everything, but it did move us forward.”

Anon – Family Client
Employment Tribunal Preparation – UK
★★★★☆

“P300 EEG results were one piece of evidence in a complex employment tribunal. The examiner’s report was professional, balanced and written in a way a judge could understand.”

Employment Lawyer
Repeat Client – Corporate & Private, UK
★★★★★

“I first used Deception Detection UK for a corporate matter and later recommended them to a family member dealing with a personal issue. In both situations they were professional, impartial and very clear about what the test can and can’t do.”

Confidential – Repeat Client
Corporate & Private / Repeat Client
Pre‑Nuptial Peace of Mind – South England
★★★★★

“We chose to do testing before getting married to put old issues to bed. Unusual maybe, but it helped us both feel we were going into the marriage with nothing hidden.”

Couple – Pre‑Marriage Client
Professional Referrer – UK‑Wide Cases
★★★★★

“As a professional who occasionally recommends specialist testing, I need providers who are honest about the limits of what they do. Deception Detection UK are clear, transparent and evidence‑driven.”

Professional Referrer – Name Withheld
Anxiety‑Sensitive Approach – Manchester
★★★★★

“I suffer from anxiety and was worried this would affect the test. They took time to explain that P300 EEG is not about heart rate or sweating, which helped me feel calmer and more in control.”

Anon – Private Client
Complex Multi‑Party Dispute – UK
★★★★☆

“Several different people were tested in a multi‑party dispute. The team managed the logistics, kept everyone separate where needed and delivered a clear set of reports for our legal conference.”

Senior Partner – Law Firm
Historic Allegation – UK
★★★★★

“This was a complex historic allegation. The team helped structure the questions properly and explained how P300 works in these types of cases. The report was detailed and helpful to our legal strategy.”

Legal Professional – Historic Case

What UK Clients Say About Our Lie Detector Tests

The reviews on this page come from people who have been through one of the most stressful situations they will ever face. Suspected infidelity, family theft, false accusations at work — these are not easy circumstances. What clients consistently tell us is that the process itself was calmer and more professional than they expected, that results arrived the same day, and that having objective evidence made it possible to move forward. Our lie detector test UK reviews average 4.9 stars across more than 80 completed cases.

Infidelity & Relationship Reviews

The most common reason people book a lie detector test in the UK is suspected infidelity. Clients describe finding messages, noticing changed behaviour, or simply having a gut feeling they cannot shake. Our reviews from relationship cases consistently mention how compassionate the examiner was, how clearly the process was explained, and how the same-day report gave them the certainty they needed to either address the situation or move on. Booking is discreet and confidential throughout.

Workplace & Corporate Investigation Reviews

HR teams, business owners and legal advisors use our lie detector testing service when internal investigations reach a deadlock. Corporate reviews highlight the evidential quality of our PDF reports, the speed of turnaround, and the ability to use results as part of a broader disciplinary or legal process. Our testing is available across the UK and can be arranged at short notice for urgent workplace matters.

Why Clients Choose Deception Detection UK

Clients choose us because we use brain-wave based testing rather than traditional polygraph methods, because results are delivered the same day, and because our examiners are trained to handle sensitive cases with care. We cover the full length of the UK — from London and Manchester to Edinburgh and Cardiff — with mobile testing available at a location of your choice. Every test includes a full written report suitable for personal, HR or legal use.

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