Purple Ray Purple Ray The Purple Ray, created by William Moulton Marston and featured in Wonder Woman comics, is a fictional healing device that brought a person back from the dead. Prior to the comic book storyline "Crisis on Infinite Earths", Diana invented the Purple Ray in order to heal Steve Trevor from injuries he sustained when his plane was shot down and he was left adrift in the sea for days. The Purple Ray was an all-around healing device. Variations on the concept survived into Earth-1, post-Crisis, post-Zero Hour and post Infinite Crisis continuities. Once it was used to revive the
Polygraph used as an interrogation tool with criminal suspects or candidates for sensitive public or private sector employment. US law enforcement and federal government agencies such as the FBI, NSA and the CIA and many police departments such as the LAPD and the Virginia State Police use polygraph examinations to interrogate suspects and screen new employees. Within the US federal government, a polygraph examination is also referred to as a psychophysiological detection of deception (PDD) examination. The control question test, also known as the probable lie test, was developed to overcome or mitigate the problems with the relevant-irrelevant testing method. Although