Polygraph wife, who suggested to him that 'When she got mad or excited, her blood pressure seemed to climb (Lamb, 2001). Although Elizabeth is not listed as Marston’s collaborator in his early work, Lamb, Matte (1996), and others refer directly and indirectly to Elizabeth's work on her husband's deception research. She also appears in a picture taken in his polygraph laboratory in the 1920s (reproduced in Marston, 1938). Despite his predecessor's contributions, Marston styled himself the "father of the polygraph". (Today he is often equally or more noted as the creator of the comic book character Wonder Woman.) Marston remained the
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