A
revisionist report by
Fred Leuchter, claiming to prove that
Nazi era execution gas chambers at
Auschwitz,
Birkenau and
Majdanek, Poland could not have been used as gas chambers.
In 1988, the self-proclaimed "
professional engineer" of
execution, Fred Luechter, was commissioned by
Holocaust Denier Ernst Zundel to investigate Auschwitz. Upon his return, Leuchter testified for defense at Zundel's hate speech trial in
Canada, saying that by his opinion,
Zyklon B was not used to kill people there.
Nizkor.org investigated the report and found it to be riddled with factual errors and unsound in almost every way. Yet Neo
Nazis cite the
Leuchter report as scientific "proof" that the
holocaust never happened.