In July 1942, he participated in a planning meeting with Himmler on the topic of medical experiments on camp inmates. From several visits to the Auschwitz concentration camps, Glücks was well aware of the mass murders and other atrocities committed there. Correspondingly, Auschwitz Kommandant Rudolf Höss routinely informed Glücks on the status of the extermination activities. During one of his inspection-tour visits to Auschwitz in 1943, Glücks complained about the unfavorable location of the crematoria since all types of people would be able to "gaze" at the structures. Responding to this observation, Höss ordered a row of trees planted between Crematorias I and II. When visits from high officials from the Reich or the Nazi Party took place, the administration was instructed by Glücks to avoid showing the crematorias to them; if questions arose about smoke coming from the chimneys, the installation personnel were to tell the visitors that corpses were being burned as a result of epidemics.