Cheating Partner Lie Detector Test
Suspect your partner is being unfaithful? Our P300 EEG lie detector test provides definitive answers with 95% accuracy. Confidential, same-day service available across the UK.
Why Clients Come to Us
Living with suspicion is exhausting. A lie detector test gives you a clear, scientific answer — so you can stop guessing and start making informed decisions.
The Reality of Living With Doubt
Suspecting infidelity but having no proof is one of the most stressful experiences a person can face. Our P300 EEG lie detector test provides objective, brain-wave evidence that ends the uncertainty — one way or the other.
Common impacts of unresolved suspicion:
- Constant anxiety and sleepless nights
- Checking phones, emails and social media obsessively
- Loss of self-esteem and confidence
- Unable to focus at work or daily activities
- Living in fear of confrontation without proof
- Physical health symptoms from prolonged stress
A single 20-minute test provides a definitive answer — either confirming your concerns or giving you genuine peace of mind. Either way, you can move forward with your life.
Signs That Something Isn't Right
- Sudden changes in behaviour and routine
- Secretive about phone calls and messages
- Working late more often without explanation
- Decreased intimacy and emotional distance
- New clothes, cologne or grooming habits
- Defensive when asked about their day
- Unexplained expenses or cash withdrawals
- Friends acting differently around you
- Stories that don't add up
- Your gut instinct says something is wrong
How the Lie Detector Test Works
Confidential Consultation
We discuss your situation in complete confidence — what has happened, what you need to know, and how the P300 EEG process works. Nothing you share leaves the room.
Question Design
Together we build and agree the specific yes/no questions for the test. You approve every question before the session — nothing is asked that you haven't seen and agreed to.
The P300 EEG Test
Your partner wears a lightweight EEG headband while the agreed questions are presented. The 8-channel system records involuntary brain-wave responses in a comfortable, private environment. The test takes 15–20 minutes.
Brain-Wave Analysis
P300 response patterns are analysed to determine whether your partner's brain recognised the details in question — an automatic neurological reaction that cannot be consciously controlled or faked.
Results & Support
You receive a full written report the same day with deception scores and a clear conclusion. Mathew explains the results in plain English — and whatever the outcome, we provide guidance on next steps.
Complete Confidentiality Guaranteed
100% Private
Your identity and all test details remain completely confidential. We never share information with anyone without your explicit written consent — including your partner.
Discreet Service
Testing takes place in private facilities with no visible signage or branding. No judgment, no assumptions — just calm, professional support throughout.
Secure Records
All test records are encrypted, GDPR-compliant and securely stored. Data is destroyed after 2 years unless you specifically request otherwise.
Anonymous Booking
We offer anonymous booking options and encrypted communication channels for clients who need complete discretion from the very first contact.
What Your Report Looks Like
Every test includes a detailed 12-page PDF report analysing neural responses. Swipe through example pages below.
Deception Score Analysis
Granular breakdown of deception scores calculated from specific neural biomarkers.
Executive Summary
Clear, definitive results indicating deception probability and overall risk assessment.
Official Certificate
Signed certification of examination suitable for legal or private verification.
Raw Data Export
Full transparency with access to the raw visual data used to generate the final conclusion.
Neural Response Timeline
Millisecond-by-millisecond brain activity in response to probe stimuli.
Question Category Breakdown
Comparative analysis of responses to relevant, irrelevant and control questions.
Cognitive Load Metrics
Response latency analysis indicating increased cognitive load during deceptive answers.
Component Amplitude Data
Scientific validation of P300 wave amplitude and latency specific to the subject.
Cheating Partner Case Studies — Real Outcomes
Four documented P300 EEG infidelity investigations — a trust verification, a 10-person study, a same-day confirmed result, and a long-distance suspicion resolved with a clear result. What the test found and what happened next.
Relationship Trust Verification: Clarity After Months of Uncertainty
A private client had been living with infidelity suspicions for months — unable to move forward and unable to let go. P300 EEG provided a 92% accurate result in a single session where the polygraph had returned an ambiguous 51%. The client had a clear answer the same day and was able to make a decision based on fact rather than suspicion.
Read the case study
Partner Infidelity Detection Study: 10 Participants, All Confirmed
Ten participants from Manchester and Leeds with suspected unfaithful partners were tested using the 8-channel BrainBit EEG system. 100% accuracy across all ten cases — all partners subsequently confirmed the findings when presented with the results. The study that demonstrates what P300 EEG achieves in real relationship investigations.
Read the studyCheating Partner Confirmed: Six Months of Denial Ended in One Session
Six months of suspicion. Six months of denial. All four P300 EEG probe sets returned deception-indicated. The partner admitted the infidelity the same afternoon — before leaving the building. The client described it as the first honest conversation in six months. Documented case from booking to same-day closure.
Read the case study
Long-Distance: Eight Months of Suspicion — All Four Probe Sets Clear
Two hundred miles between them. Eight months of growing suspicion. Every behaviour that would have seemed ordinary in the same city looked different at a distance. Priya agreed to be tested without hesitation. All four probe sets returned clear — no deception indicated. The relationship was intact. The case study that shows what a clear result looks like.
Read the case studyClient Reviews
Real experiences from clients who used our infidelity lie detector testing service.
"The cheating partner lie detector test finally gave me proof of my husband's affair. The P300 EEG technology was incredible - completely accurate and couldn't be faked. Professional service throughout a difficult time."
"Best investment I ever made. The cheating partner test revealed my wife's secret affair with a work colleague. The team was supportive and professional during a very emotional discovery."
"After months of suspicion, the cheating partner lie detector test confirmed my boyfriend was cheating with multiple women on dating apps. Finally had the proof I needed to end the relationship with dignity."
"The P300 EEG cheating detection test exposed my husband's 2-year affair. The 95% accuracy gave me confidence in the results. The emotional support afterwards was invaluable during the divorce proceedings."
"Proved my partner was cheating with her personal trainer. The brain-wave technology can't be beaten or faked - it gave me the concrete evidence I needed. Highly recommend for anyone suspecting a cheating partner."
"The cheating partner test revealed my wife's emotional affair with an ex-boyfriend. The 20-minute test was quick and comfortable, but the results changed everything. Professional service during a difficult time."
"After finding suspicious messages, I booked a cheating partner lie detector test. It confirmed my husband was having an affair with his secretary. The truth was painful but necessary for moving forward."
"The P300 cheating detection test exposed my partner's affair with a neighbour. The technology is amazing - measures brain responses that can't be controlled. Worth every penny for peace of mind."
"Caught my cheating boyfriend red-handed. The lie detector test revealed he was seeing three different women while claiming to be committed to me. Finally had proof to confront him with confidence."
"The cheating partner lie detector test uncovered my husband's affair with a client. The P300 EEG technology is incredible - completely scientific and accurate. The support team helped me through the aftermath."
"Best decision I made was getting the cheating partner test. Discovered my wife was having an affair with her yoga instructor. The brain-wave analysis doesn't lie - gave me the truth I needed."
"The P300 cheating detection revealed my partner's secret relationship with an ex. The test was quick, professional, and 100% accurate. Finally had proof of what my gut had been telling me for months."
"My husband denied everything for months. One P300 EEG session and the truth came out - he'd been seeing someone from his five-a-side group. The brainwave data was undeniable. Wish I'd done it sooner."
"Suspected my girlfriend was cheating while I was working nights. The P300 test confirmed she'd been inviting someone round while I was out. Quick, discreet, and gave me the answers I needed to move on."
"Found hotel receipts in my wife's car and she had an excuse for everything. The cheating partner lie detector test cut through all the lies in 20 minutes. Brain doesn't lie even when the mouth does."
"The cheating partner test saved my sanity. My partner was gaslighting me for months saying I was paranoid. P300 EEG proved the affair was real. The team handled everything with sensitivity and respect."
"I travel for work and always wondered what happened while I was away. The P300 cheating detection test confirmed my worst fears - my partner had been unfaithful repeatedly. Painful but I'm glad I know."
"Caught my husband's affair through the cheating partner test after his behaviour changed dramatically. He swore blind nothing was going on. The EEG brainwave results told a very different story. Incredible technology."
"My fiancée was cheating with someone she met on a girls' holiday. She denied it to my face but the P300 lie detector test showed her brain recognised every detail. Saved me from marrying a liar."
"After 15 years of marriage, I finally got the truth. The cheating partner lie detector test exposed an affair that had been going on for over a year. The P300 report was clear and detailed. Life-changing service."
"My boyfriend kept disappearing on weekends with weak excuses. The P300 cheating test confirmed he was seeing his ex behind my back. No amount of lying can fool brainwave technology. Truly grateful for this service."
"The cheating partner test was the hardest thing I've ever arranged but the best decision I made. My wife's affair with a colleague was confirmed within minutes. The aftercare support made a real difference."
"Discovered my partner had been using dating apps throughout our entire relationship. The P300 EEG cheating detection test laid it all bare. Scientific, professional, and completely conclusive. Can't thank the team enough."
"Everyone told me I was imagining things. The cheating partner lie detector test proved I wasn't. My husband had been seeing someone from the gym for six months. The P300 results gave me the courage to leave."
"My girlfriend's phone was always face-down and she'd changed all her passwords. The P300 cheating test confirmed what I already suspected - an affair with her boss. 20 minutes for answers I'd been chasing for months."
"The cheating partner test exposed my husband's double life. He'd been in a full relationship with another woman for over a year while coming home to me and the kids every night. The brain scan doesn't miss a thing."
"Booked the cheating partner lie detector after finding a second phone in my partner's car. The P300 results confirmed multiple affairs. Devastating but I needed the truth. The staff were compassionate and professional throughout."
"My wife kept coming home late blaming work. The cheating partner test took 20 minutes and confirmed she was seeing a man from her running club. No arguments, no denial - just scientific proof from brainwave data."
"The P300 EEG cheating test caught what months of arguments couldn't resolve. My boyfriend was meeting his ex every time he said he was at his mate's house. The technology is remarkable and the team were brilliant."
"Had a gut feeling for over a year. Friends said I was overthinking it. The cheating partner lie detector test proved my instincts right - my partner had been unfaithful with a neighbour. Finally have closure."
"The cheating partner test was worth every penny. My husband's affair with a woman he met online was confirmed instantly by the P300 brainwave scan. He couldn't deny it when I showed him the report. Life-saving service."
"My partner denied everything even with evidence on his phone. The P300 EEG cheating detection test ended the debate permanently. His brain recognised every detail of the affair he claimed never happened. Unbelievable technology."
"Arranged the cheating partner test after my wife started guarding her phone obsessively. The P300 results confirmed she'd been having an affair with someone from her book club. Quick test, clear results, supportive team."
"The cheating partner lie detector gave me answers after two years of suspicion. My boyfriend had been unfaithful with multiple people. The P300 EEG scan detected it all. I finally have the truth and can rebuild my life."
"My husband claimed the woman was just a friend. The P300 cheating partner test proved otherwise in under 20 minutes. His brain's recognition response showed he was lying about everything. Absolutely recommend this service."
"Found lipstick on my partner's shirt and he laughed it off. The cheating partner lie detector test confirmed an affair with a colleague that had been going on since Christmas. The EEG evidence was impossible to argue with."
"The cheating partner test ended six months of gaslighting. My wife was telling me I was crazy for suspecting anything. The P300 brainwave results showed she recognised every detail of the affair. Truth doesn't hide from science."
"Caught my boyfriend cheating after he kept making excuses to stay late at work. The P300 EEG lie detector test confirmed he was seeing someone from his office. The whole process was handled with real care and professionalism."
"My partner swore on our children's lives he wasn't cheating. The P300 cheating detection test told a completely different story. An 18-month affair with someone from his football team's social group. The brain never lies."
"The cheating partner lie detector test was the closure I desperately needed. My wife's affair with an old university friend was confirmed by the P300 EEG brainwave scan. Accurate, fast, and handled with genuine compassion."
Pricing
Complete Lie Detector Test Package
All-inclusive — no hidden fees
What's Included:
- Confidential pre-test consultation
- Full P300 EEG brain-wave lie detector test
- Advanced neural response analysis
- Comprehensive written report with deception scores
- Post-test emotional support and guidance
- Relationship resources and therapy referrals
- Follow-up support
- Complete confidentiality guarantee
- Anonymous booking available
Privacy Guarantee
Your privacy is paramount. All testing is conducted in complete confidence with GDPR-compliant data handling. No permanent records are kept unless you specifically request otherwise.
See Our P300 EEG Test in Action
Watch how our brain-wave lie detector technology works to detect cheating partners with 95% accuracy.
Emotional Support & Guidance
We Understand What You're Going Through
Discovering infidelity is emotionally devastating — and even suspecting it takes a serious toll. Our team provides calm, compassionate support before, during and after the test.
Support Included With Every Test:
- Pre-test emotional preparation
- Calm, supportive environment throughout the session
- Post-test guidance regardless of outcome
- Relationship advice and practical next-step resources
- Referrals to professional therapists
- Follow-up support available after your appointment
Whatever the results reveal, we help you process the information and make the best decisions for your future. You will not be left to deal with this alone.
Additional Resources
Relationship Counselling
Professional couples therapy referrals to help rebuild trust or navigate separation — whichever path is right for you.
Support Groups
Connect with others who have been through similar experiences through local and online communities.
Individual Therapy
Personal counselling to help you process emotions, rebuild confidence and move forward on your own terms.
Communication Skills
Learn techniques for difficult conversations — whether you're working to rebuild the relationship or preparing to move on.
🧠 Build Your Test Questions — Free Tool
Tell us your situation in plain English. Our AI will generate 3 professionally worded yes/no questions.
Here are your 3 suggested P300 test questions.
These questions are ready to use. Book your test and we'll confirm and finalise them with you before the session.
Book My Test →Your situation is not stored or logged. This tool uses AI to suggest questions only — final questions are always confirmed with your examiner before testing.
Frequently Asked Questions
Common questions about our infidelity lie detector testing service.
Our P300 EEG lie detector test achieves 95% accuracy. The technology measures involuntary brain-wave responses that occur within 300 milliseconds — before conscious thought is possible. These responses cannot be controlled or faked, making P300 EEG significantly more reliable than traditional polygraph testing.
The test costs £499 all-inclusive — consultation, P300 EEG session, full written report and post-test support. Couples packages (both partners tested) are available for £899. Same-day emergency appointments are £599. No hidden fees.
No. P300 EEG measures involuntary brain responses that occur automatically when a person recognises information. These neural reactions cannot be consciously suppressed — no amount of preparation, breathing techniques or countermeasures will affect the result.
Yes. We never share results with anyone without your explicit written consent. All records are GDPR-compliant, encrypted and securely stored. We also offer anonymous booking for clients who need complete discretion from the very first contact.
You can ask 3–5 specific yes/no questions covering physical affairs, emotional affairs, dating apps, specific individuals, workplace relationships and hidden communications. Mathew works with you during the consultation to design questions that will give you the clearest possible answers.
The full appointment takes 45–90 minutes including consultation, setup, testing and results discussion. The P300 EEG test itself takes just 15–20 minutes. You receive your full written report the same day.
We cover the entire UK including London, Manchester, Birmingham, Liverpool, Leeds, Glasgow, Edinburgh, Cardiff, Bristol, Newcastle, Sheffield and Brighton. We also offer a mobile service — our examiner travels to your home, office or a neutral venue.
Yes. All testing requires voluntary informed consent from the person being tested. We will never conduct a test without full agreement — coerced testing is unethical and produces unreliable results. Many clients find that simply raising the idea of a test prompts an honest conversation.
Every test includes post-session support. Mathew explains the results in plain English and provides guidance on next steps. We also offer referrals to professional therapists and relationship counsellors if needed — regardless of the outcome.
Standard appointments are usually available within 24–48 hours. Same-day testing can be arranged for urgent situations, subject to availability. Call 0161 524 5513 to check immediate availability.
🔍 Find Cheating Partner Testing in Your Area
Professional cheating partner lie detector tests available across the UK. Enter your location to check if we cover your area for P300 EEG cheating detection services.
Major UK Cities We Serve for Cheating Partner Testing
Immediate availability in these locations for professional cheating partner lie detector tests
London
Complete coverage across all London boroughs. Same-day cheating partner lie detector tests available.
View London ServicesManchester
Serving Greater Manchester with confidential cheating partner detection services.
View Manchester ServicesBirmingham
Professional cheating partner lie detector testing across Birmingham and West Midlands.
View Birmingham ServicesLiverpool
Discrete cheating partner lie detector tests throughout Liverpool and Merseyside.
View Liverpool ServicesLeeds
Comprehensive cheating partner detection services across Leeds and Yorkshire.
View Leeds ServicesGlasgow
Scotland's largest city - full coverage for cheating partner lie detector testing.
View Glasgow ServicesEdinburgh
Professional cheating partner lie detector testing in Scotland's capital.
View Edinburgh ServicesRead Before You Book
Everything you need to know about testing for a cheating partner — from deciding whether to test, to what the result means, and what to do next.
Should I Get a P300 Test if I Think My Partner Is Cheating?
The complete guide to whether — and when — P300 EEG testing is the right step. How to approach the conversation with your partner, what to prepare, and what to expect from the result either way.
Read the guide
What to Do If Your Partner Refuses a Lie Detector Test
Refusal is not automatically proof of guilt — but it does mean something. A practical guide to the real reasons behind refusal, how to respond, and what your options are when a direct conversation isn't enough.
Read the guideP300 EEG for Relationship Testing: What to Expect in 2026
How relationship P300 EEG testing works today, what a typical appointment looks like, and what makes a relationship test reliable versus unreliable. Written for people who have never been tested before.
Read the guide
Rebuilding Trust After a Clear P300 EEG Result
The result said clear. Now comes the harder work. A guide to what rebuilding trust actually looks like after a no-deception result — what helps, what doesn't, and what both partners genuinely need from each other.
Read the guideDon't Let Your Cheating Partner Destroy Your Life
Stop living in uncertainty and suspicion.Professional P300 EEG lie detector tests reveal the truth about cheating partners with 95% accuracy. Whether you discover infidelity or find peace of mind, knowing is better than wondering. Take control and get the answers you deserve.