The evidence is overwhelming and not contradicted that experiments involving the effect of low air pressure on living human beings were conducted at Dachau from the latter part of February through May 1942. In some of these experiments great numbers of human subjects were killed under the most brutal and senseless conditions. A certain Dr. Sigmund Rascher, Luftwaffe officer, was the prime mover in the experiments which resulted in the deaths of the subjects. The prosecution maintains that Ruff, Romberg, and Weltz were criminally implicated in these experiments. The guilt of the defendant Weltz is said to arise by reason of the fact that, according to the prosecution’s theory, Weltz, as the dominant figure proposed the experiments, arranged for their conduct at Dachau, and brought the parties Ruff, Romberg, and Rascher together. The guilt of Ruff and Romberg is charged by reason of the fact that they are said to have collaborated with Rascher in the conduct of the experiments. The evidence on the details of the matter appears to be as follows: In the late summer of 1941 soon after the Institute Weltz at Munich was taken over by the Luftwaffe, Hippke, Chief of the Medical Service of the Luftwaffe, approved, in principle, a research assignment for Weltz in connection with the problem of rescue of aviators at high altitudes. This required the use of human experimental subjects. Weltz endeavored to secure volunteer subjects for the research from various sources; however, he was unsuccessful in his efforts. Rascher, one of Himmler’s minor satellites, was at the time an assistant at the Institute. He, Rascher, suggested the possibility of securing Himmler’s consent to conducting the experiments at Dachau. Weltz seized upon the suggestion, and thereafter arrangements to that end were completed, Himmler giving his consent for experiments to be conducted on concentration camp inmates condemned to death, but only upon express condition that Rascher be included as one of the collaborators in the research. Rascher was not an expert in aviation medicine. Ruff was the leading German scientist in this field, and Romberg was his principal assistant. Weltz felt that before he could proceed with his research these men should be persuaded to come into the undertaking. He visited Ruff in Berlin and explained the proposition. Thereafter Ruff and Romberg came to Munich, where a conference was held with Weltz and Rascher to discuss the technical nature of the proposed experiments.