It is against the South African Constitution to force someone to undergo a polygraph examination unless they consent to it. The consent must be in writing and is frequently included in the employment contract between the Employer and the Employee.
There is presently no regulation in South Africa controlling the use of polygraphs. In situations where an employer must justify a dismissal, evidence from polygraph tests can only be corroborative or help to assess probability such as a witness’s reliability.
How reliable is a lie detector test in South Africa?
The accuracy of a polygraph test, according to studies, ranges between 90% and 97%; the difference might be attributable to the processes utilized.
Is it feasible for a person who is completely innocent to fail a polygraph test?
The findings of a lie detector test are untrustworthy, and many innocent individuals have failed them. Even if you pass the test, you might still face criminal penalties. This is not allowed.
In South Africa, how much does a polygraph examination cost?
Because we use many techniques of testing, cost for Voice Stress Analysis will range between R500 and R600, and for Polygraph Testing will range between R550 and R650, depending on the kind and complexity of the test performed.
How long does a polygraph exam take in South Africa?
around one to one and a half hours
What happens following a polygraph examination?
If the test findings are equivocal or there is suspicion of fraud, you may be asked follow-up or “problem” questions. You will not be informed of your findings immediately, but they will be reviewed by another examiner and you will be informed later.
Why are so many individuals failing polygraph exams?
Lie Detector Error Rates People fail lie detection tests for two reasons: they are guilty and are lying about the topic of the inquiry, or they are not. According to scientific research, the individual is innocent yet behaves similarly to others who are known to be guilty.
Can I decline a polygraph exam in South Africa?
Forcing someone to submit to a polygraph examination without their agreement is a violation of the South African Constitution. Permission must be granted in writing.
