Polygraph testing (commonly referred to as lie detector testing) is a tool used in certain employment, civil, and investigative contexts to assist with information verification and risk assessment.

At Private Investigator Cape Town, we do not conduct polygraph examinations ourselves.
All polygraph tests are conducted by independent, registered polygraph examiners in accordance with applicable professional standards and legal guidelines.

Our role is to coordinate, contextualise, and integrate polygraph services as part of a broader investigation or workplace process.

A polygraph test is an examination administered by a trained and registered polygraph examiner. The test measures and records physiological indicators such as:

• Blood pressure

• Pulse rate

• Respiration

• Cardiovascular response

• Skin conductivity

These indicators are analysed while the subject responds to pre-approved, case-specific questions.

Polygraph testing does not determine guilt or innocence and should not be viewed as a standalone investigative solution.

Polygraph testing:

• Is voluntary

• Requires informed consent

• Is not definitive proof

• Is used as a supporting tool, not a conclusion

Results are interpreted by the examiner and must be considered in context with other information.

Private Investigator Cape Town assists by:

• Assessing whether polygraph testing is appropriate

• Referring matters to registered polygraph examiners

• Coordinating examination logistics

• Assisting with formulation of case-relevant questions

• Integrating results into a broader investigative or HR context

We do not influence outcomes or examiner conclusions.

Polygraph testing may be considered in the following contexts:

Human Resources & Workplace Matters

• Employee investigations

• Internal incident enquiries

• Periodic integrity screenings

• Pre-employment screening (where lawful and consented)

Case-Specific Incident Testing

• Alleged misconduct

• Loss or theft-related matters

• Policy breach investigations

Civil & Investigative Support

• Verification support in civil disputes

• Supplementary investigative clarification

Polygraph testing is never compulsory and must align with labour and constitutional rights.

Polygraph results:

• Cannot be used as sole evidence for dismissal

• Must be supported by factual investigation

• Should be handled with care and legal guidance

We strongly recommend that employers involve HR professionals or labour law advisors when polygraph testing is considered.

For clarity and compliance, we do not offer:

• In-house polygraph examinations

• Coercive or compulsory testing

• Polygraph testing without consent

• Polygraph guarantees or outcome promises

• Use of polygraph results as disciplinary decisions

All polygraph-related matters are handled with:

• Strict confidentiality

• Secure information handling

• Respect for dignity and rights

• Controlled disclosure of results

Results belong to the client and authorised parties only.

We assist local and international clients who require polygraph services coordinated in Cape Town or surrounding areas, subject to legal and ethical considerations.

Remote consultations and coordination are available.

If you wish to understand whether polygraph testing is appropriate for your matter, contact us to request a confidential consultation.

We will explain the limitations, legal considerations, and appropriate process before any referral is made.