Relationship & Infidelity Tests
For couples where trust has been damaged and neither of you can move forward without knowing. The most common reason people come to us.
£490
Read about Relationship & Infidelity TestsPrivate polygraph examinations · Sheffield
Confidential lie detector testing for individuals, couples and families. No judgement, no pressure, and nothing said to anyone else. Appointments at our offices across Yorkshire and the East Midlands.
You are not the first
Almost everyone apologises for ringing. There is nothing to apologise for — people come to us because a situation has become impossible to live with, not because they enjoy the idea of a lie detector.
Whatever the situation is, we have heard something like it before and we will not react. Your appointment is a professional one, not a confession.
The test is voluntary from beginning to end. You agree every question before anything is recorded, and you can stop at any point without giving a reason.
Your report goes to you. We do not discuss your case with anyone you have not named, and our emails never say what the appointment is for.
What we do
Every examination is single-issue and focused on specific, factual questions that you agree with the examiner in advance.
For couples where trust has been damaged and neither of you can move forward without knowing. The most common reason people come to us.
£490
Read about Relationship & Infidelity TestsWhen an allegation inside a family has hardened into a stand-off and people have stopped speaking.
£490
Read about Family & Personal DisputesMoney or belongings missing from a household, and a small group of people who could have been responsible.
£490
Read about Theft & Missing Money (private)Both partners examined in the same visit, each with their own questions and their own report.
£690
Read about Couples Tests (two examinees)How it works
1
We talk through what you want the examination to establish and whether a polygraph is the right tool. If it is not, we will tell you.
2
On the day, you and the examiner write the questions together. You see and approve every one before anything is recorded.
3
Sensors record breathing, cardiovascular activity and sweat-gland activity while the agreed questions are asked. Nothing is invasive.
4
The examiner explains the outcome before you leave, and a written report follows. Inconclusive results are reported honestly as inconclusive.
Why us
Examinations are carried out by an experienced subcontracted polygraph examiner who is accredited and a member of both the British Polygraph Association and the American Polygraph Association. You will be told who is examining you before the day, and you can ask about their background at any point.
Common questions
The polygraph profession's own research — the American Polygraph Association's 2011 meta-analysis of 38 studies — reports about 89% for a properly conducted single-issue examination and about 85% for broader multi-issue screening. Two things should be said plainly alongside that. It is the profession's own research rather than independent work, and the US National Academy of Sciences review puts the figure lower. No examiner should tell you a test is infallible. Accuracy depends on the examiner's training, how carefully the questions are written, and whether the examinee is fit to be tested. A polygraph measures physiological responses — it does not read minds.
Yes. Your appointment, your reasons for it and your results are confidential. We only release the report to the people you tell us to. Our confirmation emails are deliberately plain and never mention polygraph or lie detection in the subject line or sender name, in case someone else sees your phone. Full detail is in our privacy policy.
Yes, always. A polygraph examination is entirely voluntary. The person being tested must give informed consent in writing before we begin, and they can stop the examination at any point without giving a reason. We will not test anyone who has been pressured, threatened or misled into attending — and if that becomes apparent on the day, we will end the appointment.
Polygraph evidence is not accepted by the criminal or family courts in England and Wales, and we will never tell you otherwise. People use these tests privately — to settle something between themselves, to decide whether to continue a relationship, or to give a family some certainty. If your situation involves a legal case, please take advice from a solicitor first.
Allow around two hours for a single-issue examination. Most of that time is the pre-test interview, where we agree the exact questions with you. The recorded part of the test itself is a much smaller portion of the appointment. A couples test, where two people are examined, takes longer.
From our blog
What the accuracy figures actually mean, where they come from, and why no honest examiner will promise you certainty.
An honest look at what a test can and cannot settle when trust in a relationship has broken down.
A plain description of an appointment from arrival to leaving — what is said, what is attached to you, and what is actually recorded.
No pressure and no judgement. Ask a question first, or book a test when you are ready. Everything you tell us stays between us.