Celebrity polygraph operator Ed Gelb, a past president of the American Polygraph Association, died in 2021. So writes (https://www.jampublications.com/matte_khalil-islam_polygraph_test.asp) retired U.S. Army Criminal Investigative Division polygrapher and author James Allan Matte.
I never saw any notice of Gelb's death at the time, which is mildly surprising because he was for many years arguably the most renowned polygraph operator in the United States, having appeared alongside attorney F. Lee Bailey, who also died in 2021, on the 1980s television program, Lie Detector, and having performed numerous high profile polygraph examinations, including in connection with the murder of Jon Benet Ramsey, murder accusations against O.J. Simpson, and a former prostitute's accusations (https://antipolygraph.org/blog/2007/09/11/polygraph-operator-hired-by-larry-flynt-to-test-sen-vitters-accuser-is-a-phony-phd/) against U.S. Senator David Vitter.
Perhaps most notoriously, Gelb in 2008 polygraphed the late Larry Sinclair (https://antipolygraph.org/forum/index.php?topic=3863.0), who had made allegations of a 1999 sexual encounter and cocaine use with Barack Obama, who was seeking the Democratic Party nomination for president.
In 2003, I published an article about Gelb here on AntiPolygraph.org titled, "Polygraph Operator 'Dr.' Edward I. Gelb Exposed as a Phony Ph.D." (https://antipolygraph.org/articles/article-036.shtml) and in 2006, I filed an ethics complaint (https://antipolygraph.org/forum/index.php?topic=3092.0) against him with the American Polygraph Association for falsely holding himself out as a Ph.D. while marketing his services, which by then included a contract for polygraph services with the Long Beach, California Police Department. The American Polygraph Association took no action against its past president.
Also of note, I conducted as thorough a review (https://antipolygraph.org/yabbfiles/Attachments/Critique_and_Evaluation_of_Polygraph_Examination_of_Larry_Sinclair.pdf) as possible of Gelb's 2008 polygraph examination of Larry Sinclair, which included a review of the video of that examination, which is available here (https://www.youtube.com/watch?v=2GwF0QKkWAM) (part 1) and here (https://www.youtube.com/watch?v=yFazvInXFhI) (part 2). My review showed that a computerized scoring of Sinclair's polygraph charts in fact had him passing, a fact that Gelb omitted from his polygraph report, which on the contrary purported to find Sinclair deceptive.