Leuchter report

The Leuchter report is a pseudoscientific document authored by American execution technician Fred A. Leuchter, who was commissioned by Ernst Zündel to defend him at his trial in Canada for distributing Holocaust denial material. Leuchter compiled the report in 1988 with the intention of investigating the feasibility of mass homicidal gassings at Nazi extermination camps, specifically at Auschwitz. He traveled to the camp, collected multiple pieces of brick from the remains of the crematoria and gas chambers (without the camp's permission), brought them back to the United States, and submitted them for chemical analysis. At the trial, Leuchter was called upon to defend the report in the capacity of an expert witness; however, during the trial, the court ruled that he had neither the qualifications nor experience to act as such.

Leuchter cited the absence of Prussian blue in the homicidal gas chambers to support his view that they could not have been used to gas people. However, residual iron-based cyanide compounds are not a categorical consequence of cyanide exposure. In addition, the walls and ceilings of the gas chambers were covered with plaster. The Prussian blue would have remained on the surface of the plaster and would not have left a substantial presence on the bricks, mortar, or cement beneath. By the time Leuchter arrived at Auschwitz-Birkenau to take these samples, the plaster had long since disappeared due to aging and exposure. By not discriminating against that, Leuchter introduced an unreliable factor into his experiment, and his findings were seriously flawed as a result. In contrast, tests conducted by Polish forensic scientists (who discriminated against iron-based compounds) confirmed the presence of cyanide in the locations, in accordance with where and how it was used in the Holocaust. In addition, the report was criticized as Leuchter had overlooked critical evidence, such as documents in the SS architectural office which recorded the mechanical operation of the gas chambers and others which verified the rate at which the Nazis could burn the bodies of those gassed.

In 1985, Ernst Zündel, a German pamphleteer and publisher living in Canada, was put on trial for publishing Richard Verrall's Holocaust denial pamphlet Did Six Million Really Die?, which was deemed to violate Canadian laws against distributing false news. Zündel was found guilty, but the conviction was overturned on appeal. This led to a second prosecution.

Zündel and his lawyers were joined by Robert Faurisson, a French academic of literature and Holocaust denier, who came to Toronto to advise the defense, having previously testified as expert witness at the first trial. He was joined by David Irving, an English writer and Holocaust denier, who was to assist the defense and testify on Zündel's behalf. Faurisson claimed that it was technically and physically impossible for the gas chambers at Auschwitz to have functioned as extermination facilities, based on comparisons with American execution gas chambers; he therefore suggested getting an American prison warden who had participated in executions by gas to testify. Irving and Faurisson therefore invited Bill Armontrout, warden of the Missouri State Penitentiary, who agreed to testify and suggested they contact Fred A. Leuchter, a Bostonian execution equipment designer. Faurisson reported that Leuchter initially accepted the mainstream account of the Holocaust, but after two days of discussion with him, he stated that Leuchter was convinced that homicidal gassings never occurred. After having met Zündel in Toronto and agreeing to serve as an expert witness for his defense, Leuchter traveled with them to spend a week in Poland. He was accompanied by his draftsman, a cinematographer supplied by Zündel, a translator fluent in German and Polish, and his wife. Although Zündel and Faurisson did not accompany them, Leuchter said that they were with them "every step of the way" in spirit.

After arriving in Poland the group spent three days at the former Auschwitz concentration camp site, and another at the former Majdanek concentration camp. At these, they filmed Leuchter illicitly collecting what he regarded to be forensic quality samples of materialsfrom the wreckage of the former gas extermination facilities, while his wife and the translator acted as lookouts. Drawings of where the samples were taken from, the film footage of their physical collection and Leuchter's notebook detailing the work were surrendered to the trial court as evidence. Leuchter claimed that his conclusions were based on his expert knowledge of gas chamber operation, his visual inspection of what remained of the structures at Auschwitz, and original drawings and blueprints of some of the facilities. He said that the blueprints had been given to him by Auschwitz Museum officials.

The compiled report was published in Canada as The Leuchter Report: An Engineering Report on the Alleged Execution Gas Chambers at Auschwitz, Birkenau, and Majdanek, Poland, by Zündel's Samisdat Publications, and in England as Auschwitz: The End of the Line. The Leuchter Report: The First Forensic Examination of Auschwitz by Focal Point Publications, David Irving's publishing house. However, the court accepted the report only as evidentiary display and not as direct evidence; Leuchter was therefore required to explain it and testify to its veracity in the trial.

Before Leuchter could do this, he was examined by the court. He admitted that he was not a toxicologist and dismissed the need for having a degree in engineering:

THE COURT: How do you function as an engineer if you don't have an engineering degree?