What is a polygraph test more commonly known as?
Polygraph spy but was convicted for improperly obtaining US citizenship and using it to obtain a restricted position at the FBI. The polygraph also failed to catch Gary Ridgway, the "Green River Killer". Another suspect allegedly failed a given lie detector test, whereas Ridgway passed. Ridgway passed a polygraph in 1984; he confessed almost 20 years later when confronted with DNA evidence. In the interim he had killed seven additional women. Conversely, innocent people have been known to fail polygraph tests. In Wichita, Kansas in 1986, because he failed two polygraph tests (one police administered, the other given by an expert
Polygraph Frye standard was lifted and all forensic evidence, including polygraph, had to meet the new Daubert standard in which "underlying reasoning or methodology is scientifically valid and properly can be applied to the facts at issue". While polygraph tests are commonly used in police investigations in the US, no defendant or witness can be forced to undergo the test. In "United States v. Scheffer" (1998), the US Supreme Court left it up to individual jurisdictions whether polygraph results could be admitted as evidence in court cases. Nevertheless, it is used extensively by prosecutors, defense attorneys, and law enforcement agencies. In