Lie Detector Tests From £399
    Secure your date with just a £149 deposit

    Lie Detector Test Bristol & South West

    Finally Get the Answers You Deserve

    You already know how heavy the not-knowing is. What changes with a polygraph test is simple: by tomorrow, the question has an answer. Whether you need the truth about someone else or the chance to prove your own, our examiners, trained to police standards in interviewing, test at two Bristol offices, city centre and Aztec West, and we take on a limited number of examinations each week.

    Real calendar, real slotsPaid means confirmed, that secondConfirmation email in seconds
    Established 2019
    2,000+ Tests Conducted
    Following APA Standards

    Single-Issue Testing for Accurate Results

    Relationship Test

    from £399

    Stop the endless wondering and sleepless nights. If suspicion is eating away at your relationship, our confidential test gives you the definitive answer you need—whether that's peace of mind or the truth you suspected. One focused question, one clear result, within 24 hours.

    Book Now

    Couples Test

    from £695

    When trust has broken down on both sides, testing together is often the fastest route back to solid ground. Both partners are tested back-to-back on the same issue, on the same day—so you leave with clear answers, not lingering doubts, and a saving compared to two separate tests.

    Book Now

    Pre-Employment Screening

    from £449

    One bad hire can cost your business thousands. Before you hand over the keys, the cash drawer, or sensitive data, know exactly who you're trusting. Our screening gives you confidence in your hiring decisions and protects what you've built.

    Book Now

    Theft Investigation

    from £449

    When something goes missing, the uncertainty can be worse than the loss itself. Accusations fly, trust breaks down, and nobody knows who to believe. A polygraph test cuts through the confusion—clearing the innocent and identifying where to focus your attention.

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    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
    Booking here
    • 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.

    Lie detector tests at your home

    Your Examiner

    Professional polygraph and lie detector testing facility in Bristol with Stoelting CPS examination equipment

    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.

    Our examinations are conducted by examiners trained to police standards in interviewing, with advanced polygraph training and years of practical experience. Having conducted hundreds of examinations for both private and corporate clients, we understand the sensitive nature of these situations and maintain absolute professionalism throughout.

    Our examiners maintain the highest standards through ongoing professional development and adhere strictly to American Polygraph Association (APA) standards and best practices. This combination of training to police interview standards and continuous professional development ensures the highest standards of accuracy and reliability.

    All our examiners are Enhanced DBS checked for your peace of mind.

    Key Credentials

    Trained to police interview standards
    Advanced polygraph examination training
    Ongoing professional development
    Enhanced DBS checked

    Following APA standards and best practices

    Choosing a Legitimate Lie Detector Examiner

    Unfortunately, the UK lie detector and polygraph industry includes operators offering substandard services. Here's how to identify a professional service:

    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 in central Bristol and at Aztec West
    • 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 a comprehensive report including the actual physiological charts recorded during your test. These charts show heart rate, blood pressure, breathing patterns and skin conductivity - the raw data that determines your result. Any examiner not providing these charts is likely using inadequate equipment or lacking proper training.

    Where our clients travel from

    Every examination takes place at one of our two Bristol offices, in the city centre near Temple Meads or at Aztec West in north Bristol. These are the towns our clients most often travel from, and how they get here.

    How It Works

    1

    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 Bristol office.

    2

    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.

    3

    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.

    4

    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

    No. Nearly everyone who books with us spent weeks telling themselves the same thing. Wondering this hard is not something people do without a reason, and a test is simply the fastest honest way to make it stop. Worth knowing: most people who close this page to think about it never come back, and it is rarely because the question went away.

    Your statement will show a short reference to LPI, our parent company. It will not mention polygraph, lie detector or Bristol Polygraph Services, so nobody glancing at the account learns anything about the booking.

    You cannot compel anyone, and we would not test them if you could, because free consent is what makes a result valid. But a flat refusal, once a fair and professional test has been offered, tells you something in itself. Many clients find the conversation about taking a test resolves matters before any appointment is needed.

    When administered by a qualified, experienced examiner using modern equipment, polygraph tests demonstrate accuracy rates between 90-98%. However, accuracy depends on several critical factors: the examiner's qualifications and experience, the quality of equipment used, the testing environment, and the examinee's physical and mental state. This is why it's essential to choose a properly accredited examiner who follows established protocols.

    No. This is perhaps the most common concern people have, and it's important to understand: nervousness will not cause you to fail a polygraph test. Experienced examiners are thoroughly trained to distinguish between general anxiety and the specific physiological responses associated with deception. Everyone feels nervous during a polygraph – it's completely normal and expected. If you're being honest, nervousness won't cause a deceptive result.

    The cost of a professional polygraph examination in the UK typically ranges from £395 to £550 for a single-issue test, depending on location and specific requirements. At Bristol Polygraph, our pricing is transparent and all-inclusive with no hidden fees. The cost reflects the examiner's qualifications, the quality of equipment used, the time required for thorough preparation and analysis, and the comprehensive report you'll receive.

    No. If your appointment is more than three days away you can secure it with a £149 deposit, and the balance is collected automatically from the same card two days before your test. Nothing to remember, nothing to pay on the day. The deposit is non-refundable — it protects the appointment we hold exclusively for you — and if you would rather settle everything upfront you can pay in full, including in three instalments with Klarna.

    Book Your Appointment

    Secure online booking with instant confirmation. All enquiries are handled with complete discretion.

    Established 2019
    2,000+ Tests Conducted
    Following APA Standards

    Relationship Test

    from £399

    Single-issue fidelity testing

    Book online

    Couples Test

    from £695

    Back-to-back tests - Save £103

    Book online

    Pre-Employment

    from £449

    Background verification

    Book online

    Theft Investigation

    from £449

    Missing property investigation

    Book online

    Free Consultation

    from Free

    20-minute phone call — use the enquiry form below

    Enquire below

    Live availability, secure payment, instant confirmation — all on this site.

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    We'll respond within 24 hours

    Office Information

    City Centre: Castlemead, Lower Castle Street, Bristol BS1 3AG. Aztec West: 2440 Aztec West, Bristol BS32 4AQ
    Tests Monday to Friday, 9am to 5.30pm. Booking enquiries answered 24/7.
    City Centre: paid parking at NCP Broadmead or Cabot Circus. Aztec West: paid parking onsite, scan the QR code in the car park and check the signage for restrictions
    The City Centre office is a 10-minute walk from Temple Meads Train Station

    Questions About Booking?

    All bookings include instant confirmation, secure online payment, and a pre-test consultation to prepare you for the examination.

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    Secure your date with just a £149 deposit