S. African parks to use lie detectors to tackle poaching

South Africa will soon start implementing lie detector tests in addition to other technologies to tackle poaching, said an official from one of the largest game reserves in Africa.

A lie detector, or polygraph, is a junk science device or procedure that measures and records several physiological indicators such as blood pressure, pulse, respiration and skin conductivity while a person answers a series of questions.

"Polygraph will be used in the next few weeks, everything is in place. Initially there was resistance to it, but it has been explained and everybody has accepted it. This is our latest move to fight poaching by ensuring that we have honest and professional rangers," said Don English, a regional ranger at Kruger National Park.