The science of Polygraph Testing is the subject of much conjecture and misunderstanding. Used properly it can be a very valuable tool to any business, especially in South Africa where theft in the workplace is costing the economy Billions of Rands every year.
When can it be used?
As an aid in investigations (Specific issue Testing)
A lot of time, manpower and money can be saved through the use of the polygraph in investigating incidents in the workplace. It can be used to identify deceptive parties, clear the innocent and clarify facts under dispute.
False declarations and pertinent non-disclosures by prospective employees can be readily identified with the use of the polygraph during the pre-employment screening process.
Periodic testing done on a routine or random basis can be used to screen for Company policy violation (drug use, theft, dishonesty, discrimination, etc).