Since the 1970s, Holocaust deniers have focused their attention especially on the issue of crematoria in Auschwitz, thinking that questioning the existence of these would enable them to deny the Holocaust itself. The Holocaust deniers' attacks against the evidence of the Auschwitz crematoria reached a dramatic apex during the infamous London court case David Irving against Deborah Lipstadt in the year 2000. Court-ordered expert Robert Jan van Pelt defended his 700 page report under cross examination for five days – the outcome was pathetic for David Irving.
The Dutch architectural historian's lecture in English focused on the background and developments of this historical court case.