Polygraph, Lie detector: What is the reliability of a polygraph test?bearforensics (25) in polygraph • 6 years ago The reliability of polygraph exams seems to be controversial. There seems not to be a clear consensus on the reliability of a polygraph or polygraph test. This video explains the reason why there might so many differences in reliability percentages. ▶️ DTube ▶️ IPFS polygraph science polygraph_reliability dtube