Common sense would have us think that of all the professionals, polygraph (lie detector) examiners would value truth more than most people. And most of them do. However...
Some polygraph examiners are outright frauds and confidence men. Thousands of people are falling prey to these so-called examiners every year and are paying out hard-earned money to get nothing in return but smoke, mirrors, and false promises. | [read more]
Polygraphy, a type of lie detector testing, is a legitimate science that has been around for nearly 100 years and continues to evolve and improve. Modern techniques have gotten the accuracy rate consistently within the 90 to 95% range (for specific issue testing). That is assuming, of course, that the test is done correctly. When a test is done incorrectly, it’s better not to have the test done at all. But how can you tell the difference? First you need to understand how a legitimate polygraph examiner is trained. After attending and graduating from a polygraph training school accredited by the American Polygraph Association (APA), the examiner undergoes an internship (typically one year) before becoming certified by the training facility. If the examiner is working in one of the states that requires a polygraph license, he or she must obtain that license following the internship. The examiner must then return to school each year for continuing education, and this training must also be approved by the APA. Most U.S. and Canadian examiners will belong to either the American Polygraph Association, the National Polygraph Association, or the American Association of Police Polygraphists in order to facilitate this continuing education and to keep abreast of the rapid changes being made within the industry.
Then you have the frauds. These "examiners" typically teach themselves how to conduct exams by reading books and manuals, then hang out their shingles. Others may tell you they completed training at XYZ polygraph school, but this school either doesn’t exist or is not an accredited training facility. Others may tell you they were "preceptor" trained, which means they were trained by a qualified examiner but never attended a formal polygraph school. In any case, you end up with an examiner who has not been properly trained to do polygraph testing. This examiner is not eligible to belong to the APA and is not permitted to attend most continuing education programs.