Hearing the voice of former-SS Judge Konrad Morgen is truly fascinating, and a little disturbing, when you understand what was really going on during his testimony (from 49:30 on the first video). Morgen describes in precise detail Krema II of Auschwitz II (Birkenau)—the gas chamber. It is as if Morgen has been forced to memorise every single feature of one of the highly detailed models of Krema II, which are still on display in Block 4 of Auschwitz I today. The 1948 Polish film Ostatni etap (The Last Stage), shot on location at Auschwitz II (Birkenau), featured (at 6:23) a model which bears an uncanny similarity to the smaller of the two detailed models of Krema II in Block 4.
Morgen testified as a prosecution witness at the Frankfurt Auschwitz trial on March 9, 1964, but almost 18 years earlier, on August 8, 1946, Morgen had testified at the main Nuremberg trial as a defence witness. He had been called by Horst Pelckmann, the defence council for the SS as an organisation, he wasn't counsel for any of the 21 defendants, physically present, at the trial.
Morgen had sung like a bird at the Nuremberg trial, admitting that he had personally; "... investigated the entire stretch of territory and studied the layout and installations", meaning the Auschwitz gas chambers. But unfortunately for the Holocaust Industry, Morgen had gotten a rather major detail about the gas chambers utterly wrong: "By "Extermination Camp Auschwitz" I did not mean the concentration camp. It did not exist there. I meant a separate extermination camp near Auschwitz, called "Monowitz."" Morgen, insisted four separate times that the Auschwitz extermination camp was the "Monowitz" camp, and not the "concentration camp", meaning either Auschwitz I, but more probably Auschwitz II (Birkenau). This rather major slip by Morgen, would not have gone unnoticed by those who had invited him testify to the gas chambers, and escape at least a lengthy prison sentence, but far more probably, the gallows.
When you hear Morgen's voice at the Frankfurt Auschwitz trial, you can not miss the fear and trepidation it reveals. The Industry must have made sure that this time, Morgen's testimony would be about gas chambers in Auschwitz II (Birkenau) and not Monowitz (one the 40 odd camps known as Auschwitz III). According to the documentary's English subtitles of the comments made by trial prosecutor Joachim Kügler, Morgen "broke down during his testimony and wept bitter tears" (from 53:51 on the first video).