Lie Detector Test Cardiff & South Wales
Straight Answers When Nothing Else Has Worked
The question does not fade on its own; it just gets heavier. One examination at our Cardiff Gate or Chepstow office, and by this time tomorrow you will simply know. That goes for proving your own honesty as much as testing someone else's. Examinations are conducted by examiners trained to police standards in interviewing, and we take on a limited number each week.
Single-Issue Testing for Accurate Results
Relationship Test
from £399When you suspect a partner has been unfaithful, not knowing is its own kind of torture. One issue, examined properly under controlled conditions at our Cardiff Gate or Chepstow office, gives you a clear result within 24 hours. Some clients get reassurance. Others get confirmation. Either way, the wondering stops.
Couples Test
from £695Sometimes both partners need to be heard. With a couples test you are each examined on the same issue, back to back on the same day, and you both see the results. It costs less than booking two separate tests and it means neither of you goes home still wondering about the other.
Pre-Employment Screening
from £449Hiring for a role that involves cash, keys or confidential information carries real risk, and references only tell you so much. A voluntary screening examination adds a layer of assurance that an interview cannot. South Wales employers use us for exactly this reason.
Theft Investigation
from £449Money or property has gone missing and everyone is looking sideways at each other. A single issue test resolves it, clearing the people who had nothing to do with it and narrowing down where the problem actually lies. Often the innocent are the ones who ask for the test.
Secure any test today with a £149 deposit
Book the date now and the balance is collected automatically two days before your appointment — nothing to remember, nothing to pay on the day. Prefer to settle it upfront? Pay in full and you can spread the cost with Klarna at checkout.
Booked means booked
There are two ways to book a lie detector test in the UK. They are not the same.
Most polygraph websites
- 1Pay a £125 to £150 deposit, often non-refundable
- 2Fill in a form with your preferred dates
- 3Wait for a call, typically 3 to 5 days out
- 4Card only, an examiner assigned, a room hired for the day
- See the actual calendar with real free slots
- Pay in full, or secure eligible dates with a deposit
- Spread the cost with Klarna at checkout
- Confirmed the moment payment completes
- Our own offices, our own examiners, every week
A deposit here is not a fee to join a queue. It confirms a real appointment, instantly. To our knowledge, no other UK polygraph service offers instant confirmed booking or takes Klarna.
Evenings, weekends, or unable to travel?
Our home visit service brings the same examiners, the same instruments and the same instant booking to your own front room, seven days a week with the last examination starting at 8pm. Enter your postcode and see real visit times for your address.
Your Examiner
A note from your examiners: you will not find our names or faces on this website, and that is deliberate. The nature of this work means examiners here stay anonymous, and the same discretion that protects us is what protects every client we test. What we can tell you is that we are trained to police standards in interviewing, and that the words clients use most about their examinations are rarely the ones they expected to use.
"You are very calming." "Thank you so much for putting me at ease." Said to us by recent clients, during and after their examinations.
Testing at Cardiff Gate and Chepstow is carried out by examiners trained to police standards in interviewing before qualifying in polygraph. Between them they have run hundreds of examinations for private and business clients, and they understand how difficult the circumstances behind a booking can be. Nobody here will judge you, and nobody will rush you.
Standards matter in this field because very little else protects the client. Our examiners work to American Polygraph Association standards, keep their training current through yearly professional development, and use validated question techniques rather than improvised ones.
Every examiner is also Enhanced DBS checked for your peace of mind.
Key Credentials
Following APA standards and best practices
Choosing a Legitimate Lie Detector Examiner
Anyone in the UK can buy a polygraph instrument and start charging for tests tomorrow. There is no licence and no official register, so checking who you are dealing with falls to you. This is what we would look for:
Red Flags to Avoid
- ✕No physical charts or data provided with results
- ✕Home tests with no screening of the room or conditions
- ✕Prices significantly below £350
- ✕Same-day results promised before the test
- ✕Multiple issues tested in one session
- ✕No formal pre-test interview
- ✕Unwillingness to explain the process
- ✕No verifiable training or experience
What We Provide
- Comprehensive report with physiological charts
- Permanent offices at Cardiff Gate Business Park and in Chepstow
- Computerised polygraph equipment (£8,000+ value)
- Single-issue testing for maximum accuracy
- APA testing protocols followed
- Full transparency about the process
- Verifiable qualifications and experience
- Professional, unhurried examination
Every client receives the full report, charts included. The charts are the raw recording of your heart rate, blood pressure, breathing and skin response during the test. They are what your result is based on, and you are entitled to see them. If an examiner will not hand them over, it is worth asking why.
Where our clients travel from
Every examination takes place at our Cardiff Gate office, just off M4 junction 30, or at our office in Chepstow. These are the towns our clients most often travel from, and how they get here.
- Lie detector test Newport
By car to Cardiff Gate: M4 westbound, junction 28 to junction 30
- Lie detector test Swansea
By car: M4 eastbound to junction 30, around 50 minutes from Swansea
- Lie detector test Bridgend
By car: M4 junction 35 to junction 30, around 25 minutes
- Lie detector test Barry
By car: A4232 to the M4, then east to junction 30. Around 30 minutes from Barry with onsite parking
- Lie detector test Caerphilly
By car: A468 or over the mountain to junction 30, around 20 minutes from Caerphilly town centre
- Lie detector test Pontypridd
By car: A470 south then A48 east to Cardiff Gate, around 25 minutes from Pontypridd. Onsite parking
- Lie detector test Merthyr Tydfil
By car: A470 south, around 40 minutes from Merthyr to Cardiff Gate, just off M4 junction 30
- Lie detector test Chepstow
Our Chepstow office is at Riverside Court, Beaufort Park, Chepstow NP16 5UH, with parking on site
How It Works
Booking
Book online through our secure system. Pay in full, or secure your date with a deposit and the balance is collected automatically two days before your test. You'll receive immediate confirmation, preparation instructions and the full address of your chosen office.
Pre-Test Interview
On arrival, your examiner will spend 45-60 minutes discussing the issue and formulating the exact questions to be asked. This ensures the test addresses your specific concern precisely.
The Examination
The entire process takes approximately 90 minutes. You'll be connected to the polygraph instrument which monitors physiological responses whilst you answer a series of yes/no questions.
Results
Preliminary results are discussed immediately after the test. A full written report, including physiological charts and detailed analysis, is provided within 24 hours.
Booking Policy
Booking
- Pay in full, or secure your date with just a £149 deposit
- Deposit bookings: the balance is collected automatically two days before your test — nothing to remember, nothing to pay on the day
- Instant confirmation and preparation notes by email
- Full venue address, directions and parking details with your confirmation
- Need to change your appointment? Contact us and we will do our best to rearrange
On the Day & Privacy
- Payments appear discreetly as "LPI" on bank statements
- Results are released only to the person named on the consent form
- Appointments are staggered, so you will never meet another client
- Allow around two hours for your visit
- Bring photo ID on the day
Secure payment via Stripe. Your card details are held by Stripe, never by us — whether you pay in full or book with a deposit. All bookings are confirmed immediately.
Not ready to book? Message us on WhatsApp first
Frequently Asked Questions
Get answers to the most common questions about polygraph testing
Book Your Appointment
Secure online booking with instant confirmation. All enquiries are handled with complete discretion.
Relationship Test
from £399Single-issue fidelity testing
Couples Test
from £695Back-to-back tests - Save £103
Pre-Employment
from £449Background verification
Theft Investigation
from £449Missing property investigation
Free Consultation
from Free20-minute phone call, use the enquiry form below
Live availability, secure payment and instant confirmation, all on this site.
Or send us an enquiry
We'll respond within 24 hours
Office Information
Questions About Booking?
All bookings include instant confirmation, secure online payment, and a pre-test consultation to prepare you for the examination.