A polygraph report is not a magic bullet or a verdict. It is just one tool that needs to be interpreted correctly. To avoid mistakes and unfounded decisions, keep a short but very practical guide
1. A polygraph is an indicator, not proof.
It records physiological reactions, not the lie itself. A person may be worried due to fear or stress.
Conclusion: a polygraph cannot be the only basis for decisions.
2. Assess the context.
Questions, reactions, alternative explanations — all this is important. Compare the data with the employee’s behavior, work history, and reputation.
3. Choose only certified polygraph examiners.
The professionalism of a specialist is half the success. Incorrect methodology = high risk of errors.
4. Refine the wording of questions.
General or ambiguous questions often give false responses. Ask specific, clear questions.
5. Do not test during stress.
Lack of sleep, conflicts, emotional exhaustion can distort the results. It is better to postpone the test.
6. Do not use the polygraph as a “witch hunt”.
The test is not “to find something”, but to solve specific risk management problems.
7. Consider alternatives to reactions.
Anxiety, personal experience, misunderstanding of the question – all this can cause a reaction without any violation.
8. Conduct pre-test and post-test interviews.
They are the ones who reveal the context, explanations and help avoid false conclusions.
9. Use the polygraph in a complex.
Combine it with experience verification, competency assessment, interviews and security systems.
10. Build trust.
The polygraph should not be scary. Transparent rules increase the accuracy of the results and reduce stress.
Formula for managers:
Polygraph = 1 tool + professional approach + context + comprehensive analysis.
