For Employers and Hiring Teams
Hiring for a role where trust matters? An employment lie detector test can help examine a specific factual concern as part of a wider hiring or screening process.
Lie Detectors UK provides private, examiner-led polygraph testing for employers, candidates and pre-employment screening where clear, role-relevant questions are needed.
For roles involving significant trust, responsibility, restricted access or sensitive information, an employer may want to examine a specific concern before making a hiring or screening decision.
The test should focus on clear, role-relevant facts. Depending on the circumstances, these may include declared education, work history, application statements, conflicts of interest, drug use, gambling, indebtedness, criminal conduct or another specific employment-screening concern that is suitable for examination.
An employment polygraph should form only one part of a wider vetting process. It does not replace right-to-work checks, DBS checks where required, references, HR procedures, legal advice or the employer’s own decision-making.
The test may focus on whether important information provided during the hiring process is accurate, such as application statements, qualifications, employment history or declared conduct.
Where appropriate, relevant questions may address a defined employment concern involving conflicts of interest, misuse of sensitive information, illegal drug use, financial pressure or another matter directly connected to the role.
Pre-employment screening may be considered where a position involves an unusually high level of trust, access to confidential information, financial responsibility or other sensitive duties. The suitability of polygraph screening should be considered according to the particular role and circumstances rather than applied indiscriminately to job applicants.
A lie detector test can provide additional information about a specific concern, but employers should consider the result alongside appropriate background checks, references and other recruitment procedures.
An employment lie detector test depends on carefully prepared, relevant questions.
Before the examination, the polygraph examiner discusses the concern and prepares questions linked specifically to the issue being tested.
A standard test will usually focus on up to three relevant questions, asked over multiple charts.
The questions should be:
Accuracy
The employer or candidate can explain the circumstances before an appointment is confirmed.
The examiner reviews the purpose of the test, the concern being examined and whether polygraph testing is suitable. If the issue is too broad or inappropriate for examination, this should be identified before booking.
At the appointment, the examiner conducts a pre-test interview and explains the testing procedure.
The agreed questions are reviewed so the person taking the test understands what will be asked before the polygraph examination begins. There should be no surprise relevant questions.
The examination is conducted using professional polygraph equipment.
During testing, the equipment records physiological responses including breathing, heart rate, blood pressure and changes in skin conductivity while the person answers the agreed questions.
These bodily responses do not directly identify a lie on their own. The examiner evaluates the recorded test data across the examination using the appropriate testing and scoring procedure.
After the examination, the examiner reviews and scores the recorded data before explaining the polygraph results.
A written report is included with the test and records the questions examined, result and examiner’s findings. Results are normally available on the same day.
Please allow around two hours for a standard appointment, including the pre-test interview and examination.
Clients often contact Lie Detectors UK during sensitive personal, relationship, or workplace situations. These reviews highlight the communication, professionalism, and care our clients experienced during the process.
Book a confidential appointment with Lie Detectors UK and follow a clear process from enquiry to written report.
For police, law-enforcement, security or other sensitive-role screening where public trust, restricted access or high-risk responsibility is involved.
Learn more about police and law enforcement employment screening
For workplace or business disputes involving partners, staff, internal conflict, suspected dishonesty or a specific commercial concern.
For specific allegations involving missing property, stolen money, unauthorised transactions or a defined act of fraud.
For investigator-led enquiries or cases where a polygraph examination forms part of a wider private or corporate investigation.
For solicitor, court-related or legal-use questions where you need to understand how a private report may fit into a wider legal situation.
Yes. The person taking the test must agree to participate before the examination can go ahead.
Consent is particularly important in an employment context. Employers should ensure that any screening is appropriate for the circumstances and complies with their legal and HR obligations.
Refusing a polygraph test does not by itself establish dishonesty.
The employer should handle a refusal through its normal recruitment, HR or screening procedures rather than automatically treating it as evidence against the employee or applicant.
No. An employment lie detector test should support a wider screening process.
It does not replace right-to-work checks, DBS checks where required, references, appropriate background checks, HR procedures, legal advice or the employer’s own assessment.
No polygraph examination is 100% accurate, and an inconclusive result is possible.
Factors affecting the examination should be discussed with the examiner beforehand. Results should therefore be interpreted within the scope of the specific questions and should not be treated as a complete assessment of someone’s character or suitability for employment.
Feeling nervous before a polygraph examination is normal. Physiological responses can occur for reasons other than deception, including stress or anxiety.
The examiner does not determine the result from one physical response. The pre-test interview, question structure, recorded data and complete examination are considered when evaluating the result.
No specialist preparation is normally required because the examiner explains the process beforehand.
The person taking the test should follow the instructions provided for the appointment and raise any circumstances that could affect whether the examination can be conducted appropriately.
Questions should be clear, factual and directly connected to the employment concern being examined.
They may relate to declared information, application statements, specific conduct, conflicts of interest or another role-relevant issue that is suitable for polygraph testing.
The report should be handled confidentially and shared according to the arrangements agreed before testing.
Because employment cases can involve sensitive information, the intended recipient and purpose of the report should be clear before the examination.
Please allow around two hours for the appointment. This includes the pre-test interview, preparation, polygraph examination and explanation of the result.
Yes. The person taking the test must be at least 18 years old.
Yes. A £150 non-refundable deposit is required to secure the appointment and forms part of the full test price.
If you need to examine a specific employment or pre-employment concern, contact Lie Detectors UK to discuss the circumstances and whether polygraph testing is appropriate.
