What the test actually measures
PDC offers polygraph testing for private and business enquiries. Often called a lie detector test, a polygraph records physiological responses during questioning. It does not directly detect a lie or establish the truth of an event.
Responses can have more than one explanation, and an examiner's interpretation can be wrong. Scientific reviews identify important limits to the method and variation between settings. We do not present a universal accuracy percentage or a result as a definitive finding of honesty or dishonesty.
Questions to discuss before proceeding
A useful preliminary discussion covers the reason for the request, the proposed questions and whether testing is suitable. Participation should be voluntary and informed. The person taking the test needs to understand the process, the limitations and who will receive the result.
- What precisely is the proposed test intended to address?
- How will the examiner assess suitability and explain the procedure?
- What could an inconclusive or disputed result mean?
- Would documents, independent checks or witness evidence address the issue more reliably?
Consider how you would use the outcome
A polygraph result should not be the sole basis for a serious personal, employment or legal decision. If a dispute or allegation is involved, consult the relevant professional adviser before arranging a test. Do not assume that the result can be used in proceedings or that it will resolve a disagreement.
PDC can discuss available arrangements and alternative enquiries. In many situations, checking a specific claim or establishing a factual timeline may be more useful. The first conversation is an opportunity to assess that choice without committing to a booking.
Questions you may have
Does a polygraph prove that someone is lying?
No. It measures physiological responses interpreted by an examiner. Those responses are not unique to deception, so errors and inconclusive results are possible.
Can a person be forced to take the test?
PDC's service should be approached as voluntary participation. Do not pressure someone into testing or interpret refusal as proof of wrongdoing.
Can I rely on it in a legal dispute?
Ask your solicitor before booking. Relevance and admissibility depend on the particular matter; a commercial test is not a substitute for independently verifiable evidence.
Sources & further reading
Check the original sources for their latest information and service terms.