“Professor Dr. Weltz told me that these human experimental subjects were professional criminals who were allowed to volunteer for the experiments.” (_German Tr. p. 6532._) “Hippke told me also in this conversation that it was a question of major criminals who could offer themselves voluntarily for the experiments and who, following the experiments, were then to receive in some form a mitigation of their punishment, either reduction or remission.” (_German Tr. p. 6534._) The chief of Himmler’s personal staff, SS General Karl Wolff, gave an affidavit in London on 21 November 1946, which is of special importance because Wolff himself watched experiments in Dachau together with Himmler, and also reported to Hitler concerning the experiments: “They (namely, the human experimental subjects) protested to Himmler in my presence that—after their request to be sent to the front had been turned down—they wanted to render a modest voluntary service to Germany and thereby give proof of the good will they really possessed. * * * That later low-pressure experiments are said to have taken place on prisoners on a nonvoluntary basis—of that I received no knowledge either from Himmler nor in any other way.” (_German Tr. pp. 6757-58._) Dr. Romberg declared in direct examination: “In the course of time, not exactly on the first day, but as time went on, I spoke of course with all of them more often and in greater detail; then they told me gradually what previous sentences they had had, what prisons and penitentiaries they had already been at before coming to the camp. They told me also the reasons why they had come forward and had placed themselves voluntarily at the disposal of the experiments.” To the question: “Do you mean by that, that all the human experimental subjects who were used for the altitude experiments were voluntarily human experimental subjects?” Dr. Romberg answered with a clear, “Yes.” (_German Tr. pp. 6787-88._) The following is quoted from Dr. Weltz’ deposition: “When I first heard anything from Kottenhoff concerning Rascher’s proposals, Kottenhoff spoke already of volunteers. Later, after this conversation with Hippke I spoke again with Rascher. Rascher also spoke of volunteers. We then had Rascher at our joint consultation with Ruff and Romberg in my institute. There, too, he spoke of volunteers. In the observations that he made at the Nuernberg conference in connection with Holzloehner’s lecture, he spoke of volunteers. He spoke further of volunteers, on the return journey from the Nuernberg conference, with Dr. Craemer from St. Johann. * * * Thus I never heard Rascher speak otherwise than of volunteers, and, as I said already, that was the reason why we did not speak for a long time at all concerning compulsory experiments with Hippke.” (_German Tr. p. 7064._)