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Polygraph examinations

lie-detector tests

Polygraph examinations

Our polygraph examinations—commonly called lie-detector tests—are a flagship service of our detective agency. During each session a certified detective-polygraph examiner records physiological changes (heart rate, blood pressure, skin conductance, respiration) to verify the truthfulness of statements. When combined with classic investigative techniques, a polygraph gives rapid, objective answers that resolve disputes, restore trust and provide courtroom-ready evidence.

Who Should Use a Polygraphl, Lie-Detector Test?

Any individual or business facing unanswered questions can benefit from a professional polygraph examination. Private clients turn to the lie detector to confirm relationship fidelity, resolve family disputes or defend their good name during personal investigations. Companies and public institutions rely on it for pre-employment screening, internal audits, fraud inquiries and due-diligence checks on partners. Legal professionals value the test as an objective tool for assessing witness credibility and reinforcing case strategy. Wherever the truth is critical and uncertainty carries a price, a detective-supervised polygraph delivers swift, authoritative answers.

Private investigations

When to Order a Lie-Detector Test

  • Clear your name of unfounded allegations.
  • High risk of repeat incidents (further leaks, repeated theft).
  • Investigate theft, fraud or embezzlement

Who Should Use a Polygraph / Lie-Detector Test?

Private Clients

  • Application Typical Scenarios
  • Relationship integrity suspicion of infidelity, hidden debts,
  • Premarital trust check via lie detector
  • Family disputes theft of valuables, false accusations, inheritance conflicts—clarified through polygraph investigations
  • Reputation defence disproving slander or harassment in neighbourhood or online settings
  • Legal support confirming witness honesty before testimony in civil or criminal investigations

Corporations & Institutions

  • Application Typical Scenarios
  • Internal audits stock theft, data leaks, unauthorised logins investigated with a polygraph lie detector
  • Pre-employment screening high-trust roles: IT admin, cash escort, senior finance
  • Periodic checks warehouse staff, ADR drivers, personnel with firearm or cash access
  • Compliance & fraud financial misconduct, conflict of interest, blackmail—resolved through targeted detective agency investigations
  • Business negotiations vetting potential partners, due diligence before mergers and acquisitions
 
Polygraph examinations

Effectiveness – Up to 100 % Accuracy

Our polygraph examinations deliver virtually 100 percent accuracy because every test is conducted by Robert Kostrzewa—a certified examiner, lawyer, former special-services officer, and seasoned private detective—who brings more than twenty years of operational experience to each case. Using state-of-the-art equipment that records nine physiological channels, he processes every chart with advanced analytics before verifying the results manually, eliminating the risk of false readings. The entire procedure follows the rigorous standards of the American Polygraph Association and the Polish Polygraph Association, ensuring the findings are fully admissible in court or corporate proceedings. After a single session of roughly ninety minutes, you receive a definitive report you can confidently present to judges, HR panels or mediators.

polygraph test

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