Dan Ribacoff, the self-proclaimed celebrity polygraph examiner and New York State Licensed Private Investigator, who previously appeared as the “Polygraph Expert” on the Steve Wilkos Show, his daughter Lisa Ribacoff, his son Lance Ribacoff, and their firm International Investigative Group (IIGPI), have settled two multimillion dollar lawsuits alleging client billing fraud, negligence, and numerous sexual assaults perpetrated by private investigators who worked for them, according to recently filed court documents.