Legally Compliant Polygraph Testing for Labour Disputes
A landmark case that changed labour law in South Africa
In Harmse v Rainbow Farms (Pty) Ltd, equipment went missing and fifteen employees had access to it. Each was offered a polygraph examination as a chance to clear themselves.
Mr Harmse initially refused, then took the test — and was the only one of the fifteen to fail it. Offered a second examination that could have cleared him completely, he declined. The employer dismissed him.
The decisive detail: the dismissal was for breach of the trust relationship, not for the theft itself — and the CCMA upheld it. That framing is what makes polygraph results usable in South African labour matters.
What this means for you: the courts remain cautious and the High Court has not ruled on admissibility — but at the CCMA, a properly conducted polygraph is recognised as a forensic tool, provided the dismissal is framed around trust, not the underlying offence.
Under the Code of Good Practice, dismissal must rest on misconduct serious enough to make continued employment intolerable. Dishonesty qualifies — because it destroys the trust the employment relationship depends on.
The mistake employers make is charging the employee with the theft itself on the strength of a failed polygraph. The test does not prove who took the stock; it shows deception on specific questions. Charge the breach of trust that deception creates, and the Harmse reasoning works in your favour.
Dismiss for breach of the trust relationship, supported by the polygraph result — never for the alleged theft alone. Our reports are written around exactly this distinction.
Review of circumstances and development of legally compliant testing strategy
Ensure all testing follows CCMA guidelines and labour law requirements
Detailed reports focusing on trust relationship and procedural compliance
Professional support during hearings and proceedings if required
All testing conducted within the framework of South African labour law and constitutional rights
Comprehensive reporting that focuses on trust breach rather than direct accusations
Testing strategy designed to support fair disciplinary procedures and CCMA requirements
Protect your organization from unfair dismissal claims and litigation
A badly run test can sink an otherwise solid case — and expose you to litigation. Testing without written consent, questions framed as accusations, or an unaccredited examiner all give the employee's representative exactly the procedural opening they are looking for at the CCMA.
Before any test, confirm the examiner's accreditation and that the procedure — consent, questions, report — will survive scrutiny.
Get professional polygraph support that complies with CCMA requirements and protects your organization.
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