In February of this year (1988), I was contacted by Dr. Robert Faurisson for Mr. Ernst Zundel and asked to consider an assignment to investigate and forensically evaluate the extant crematoria and alleged execution gas chambers operated by the Nazis in Poland and to render an engineering opinion as to their feasibility and efficacy.
After a meeting with Mr. Zundel, defense lawyer Douglas H. Christie and staff members, in which the project was discussed, I was told that my findings were to be used in conjunction with the case of the Queen v Zundel, then before the District Court in Toronto.

Understanding this, it was determined that the investigation would include Auschwitz, Birkenau and Majdanek (Lublin), and all associated crematoria and alleged execution gas chambers. I accepted the assignment and on February 25, 1988, I led a party of investigators to Poland. This party consisted of myself; my wife Carolyn Leuchter; Mr. Howard Miller, draftsman; Mr. Jurgen Neumann, cinematographer; and Mr. Tijadar Rudolph, Polish language interpreter. We returned on March 3, 1988 after inspecting all the required facilities at Auschwitz, Birkenau and Majdanek. This report and my findings are resultant to those investigations conducted in Poland.