This allegation of the multiple murderer Neff now stands, however, completely isolated. There can be no doubt that, if these statements by Neff were true, it would have been easy for the office of the public prosecutor to produce numerous other witnesses who, likewise, had been inmates of the concentration camp at Dachau, who had perhaps experienced these experiments themselves, or who had spoken to subjects of these experiments or had even observed the experiments. However, not a single outsider, not a single incontestable witness has been produced, although half a year has elapsed since the days when, here in the courtroom, one could not fail to realize to what an unreliable and untrustworthy class persons of the caliber of Vieweg and Neff belong. This fact very strongly indicates that obviously no other witnesses are available, or could be made available, who could confirm that the experimental subjects who were used in the Ruff-Romberg altitude tests were not volunteers. Let the fact be mentioned here, for the sake of comparison, that in the case of the Gebhardt sulfanilamide operations for example, half a dozen incriminating witnesses were brought from Poland and Russia and were interrogated here as witnesses. Why was not a single trustworthy witness produced from among the Dachau experimental subjects and placed in the witness box? Because no one could be found, who could confirm the untrue allegations of a Vieweg and a Neff. On the other hand, during the trial, a whole series of persons who deserve a great deal more belief than Vieweg and Neff affirmed with certainty that all the experimental subjects in the Ruff-Romberg experiments were volunteers, and that from the very beginning the indispensable condition which was demanded and assured was that the subjects would be voluntary. The witness Dr. Lutz for example, who was introduced by the office of the public prosecutor and therefore recognized by it as a credible witness, confirmed here on oath, “it was a tacit assumption that the criminals would volunteer”; and he added that he could almost say that, in a way, a favor was being conferred upon the criminals, because “they were given a chance of pardon by participating in the experiments,” and it is significant that this witness deposed further: “subsequently, we were very much surprised when, probably during the later stages of the experiments, as far as I recall now, no further mention was made of it,” namely, of the fact that only volunteers were to be used for the altitude experiments (_German Tr. p. 320_).