Polygraph Tests

The polygraph machine is an investigation tool that is able to read the subject’s involuntary responses  in order to detect whether said subject speaks the truth.


The polygraph machine is commonly used in criminal law, but can be used in job applications, periodical tests in the workplace and security.

As part of our work, Gil Investigations have an in-house polygraph institute.

The polygraph test has three integral steps:

  • Stage 1 - preparing the subject for the test in order to lower their stress levels.

  • Stage 2 - Connecting the subject to the polygraph machine and asking basic questions such as name and address, in order to calibrate the machine.

  • Stage 3 - Query of relevant questions. To ensure results are as accurate as possible, the questions asked are short and coherent. Moreover, the number of questions is limited in order to make sure that the subject is not overwhelmed with the process. 

  • Strategic investigations in various fields for companies and organizations

    Commercial Investigations

  • Field work, technical and technological solutions, consultation and guidance

    Divorce Investigations

  • Detailed assets report of an individual and/or companies

    Financial Investigations

  • Performing various investigations worldwide

    International Investigations

  • Gathering sources in order to provide high quality business intelligence

  • Analyzing and examining computing systems and building protection plans

    Cyber Security

  • Professional and reliable polygraph tests done in-house in various fields

    Polygraph Tests

  • Performing wiretaps inspections and tracing of illegal systems

    Wiretaps Inspection

  • Consultation, guidance and installation of cutting-edge surveillance systems.

    Survellience Systems

  • Details About Our Activities

    Details About Our activities

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