In South Africa, there is currently no legislation governing the use of polygraphs. In circumstances where an employer must justify dismissal, the use of evidence from polygraph tests can only be corroborative or serve to assess probabilities such as the credibility of a witness.
In South Africa, how reliable is a lie detector test?
According to research, the accuracy of a polygraph test ranges between 90% and 97%; the discrepancy can be attributed to the procedures used.
In South Africa, can I refuse a polygraph test?
It is against the South African Constitution to force someone to undergo a polygraph examination unless they consent to it. The permission must be in writing.
Is it possible for an innocent individual to fail a polygraph test?
A lie detector test’s results are untrustworthy, and many innocent people have failed them. Even if you pass the test, this does not mean you will not face criminal charges. This is not permitted.
How much does a polygraph exam cost in South Africa?
Because we employ multiple methods of testing, pricing for Voice Stress Analysis will range between R500 and R600 and R550 and R650 for Polygraph Testing, depending on the type and complexity of the test required.
In South Africa, how long does a polygraph test take?
approximately one to one and a half hours
What occurs after a polygraph examination?
If the exam results are inconclusive or fraud is suspected, you may be asked follow-up questions or “problem” questions. You will not be aware of your findings right away, but they will be evaluated by another examiner and you will be told later.
Why do so many people fail polygraph examinations?
Error Rates of Lie Detectors People fail lie detection exams for two reasons: The individual is guilty and is lying about the subject of the investigation. Based on scientific study investigations, the person is innocent but reacted similarly to others who are known to be guilty.
