Shofar archives:
Testimony of SS-Hauptsturmfuehrer Hofmann, about his days at Auschwitz
[Quoted from “Auschwitz: A Report on the Proceedings Against Robert
Karl Ludwig Mulka and Others Before the Court at Frankfurt”, By Bernd
Naumann, 1966, published by Frederick A. Praeger, NY, p. 50-1]
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The Jews were asked to line up. It was my job to preserve calm and
order. The selection was carried out by doctors. The instructions
were issued by the commandants or by Grabner. Sometimes entire
transports were gassed. At times many able-bodied workers were
selected, at other times fewer. The percentage was specified in
advance. It was determined by the need for workers.