The role of a —professionally known as a polygraph examiner—is one of the most polarizing positions in modern forensic science. Tasked with the "detection of deception," these specialists operate at the intersection of psychology, physiology, and criminal justice. While popularly dubbed "lie detector tests," polygraph exams do not actually detect lies; instead, they monitor the body's involuntary physiological responses to the stress of questioning. How a Polygraph Tester Operates
A polygraph tester, also known as a polygraph examiner, is a trained professional responsible for administering and interpreting polygraph tests. Their primary duties include: polygraph tester