Glücks's responsibilities at first mainly covered the use of concentration camp inmates for forced labour. In this phase, he urged camp commandants to lower the death rate in the camps, as it went counter to the economic objectives his department was to fulfill. Other orders of his were to ask for the inmates to be made to work continuously. At the same time, it was Glücks who recommended on 21 February 1940, Auschwitz, a former Austrian cavalry barracks, as a suitable site for a new concentration camp to Himmler and Reinhard Heydrich. Glücks accompanied Himmler and several chief directors of I.G. Farben on 1 March 1941 for a visit to Auschwitz, where it was decided that the camp would be expanded to accommodate up to 30,000 prisoners, an additional camp would be established at nearby Birkenau capable of housing 100,000 POWs, and that a factory would be constructed in proximity with the camp prisoners placed at I.G. Farben's disposal.