Sometimes two people strongly disagree about one event and other evidence has not resolved it. A polygraph, often called a lie-detector test, may be considered in a relationship, family, theft or workplace dispute. It is not completely accurate and cannot prove guilt or innocence. It should be treated as one piece of information, not the final answer to every problem.
You are not committing to anything by contacting us.
LPI arranges the appointment through an appropriately trained polygraph examiner. The examiner, not LPI or the person paying, decides whether the test is suitable, explains the procedure, agrees the final questions and prepares the result. LPI remains your main contact for arranging the location, price and appointment.
The issue must be clear and factual. For example, the disagreement may concern one particular incident, item or action. Broad questions about someone’s character, feelings, future intentions or everything they have ever done are not suitable.
The examiner decides whether the issue can be tested fairly and how the final questions should be worded. The client can explain what happened, but cannot insist on questions that the examiner considers unclear or unsuitable.
The participant must understand the process and agree freely. LPI does not arrange tests where someone is being forced, threatened or unable to understand the questions. Health, medication, language and other personal circumstances may also affect whether the appointment can go ahead.
There should be no surprise relevant questions. The exact procedure is controlled by the trained examiner, not by LPI or the person paying for the test.
A result should be considered together with other information. It does not prove a crime, decide a court case or force an employer, police force or another organisation to accept it. If an important legal or employment decision may follow, obtain advice from the appropriate professional.
The allegation is vague or covers many different events.
The question is about feelings, opinions or future behaviour rather than a past fact.
The participant does not freely agree to take part.
A police, safeguarding, court or workplace process could be affected.
The client expects the result to provide complete certainty.
Before the test, we agree who will receive the result and how personal information will be handled. The report is not automatically shared with another person simply because they are involved in the disagreement.
Home-visit polygraph and lie-detector testing starts from £650 + VAT. Travel, urgency, location and the number of people being tested may affect the final quotation.
No. A polygraph has limitations and should never be presented as infallible.
You can explain the issue, but the examiner decides which questions are fair and suitable.
No. LPI’s private examinations require willing and informed participation.
Your solicitor and the court decide whether and how it may be considered. LPI cannot guarantee that it will be accepted.
It may address one suitable factual question. It cannot rebuild trust, predict future behaviour or replace counselling or other evidence.
You will not be judged, pressured or rushed. Speak with an investigator, explain your concern, and we will tell you honestly whether an investigation would help.
All enquiries are handled privately and respectfully. You can contact us even if you are only seeking advice.
