M. DUBOST: You knew about the work carried out in the factories supplying material to the Luftwaffe. Who controlled these factories?
VEITH: I was in the Arbeitseinsatz at Mauthausen from June 1943, and I was therefore well acquainted with all questions dealing with the work.
M. DUBOST: Who controlled the factories working for the Luftwaffe?
VEITH: There were outside camps at Mauthausen where workers were employed by Heinkel, Messerschmidt, Alfa-Vienne, and the Saurer-Werke, and there was, moreover, the construction work on the Leibl Pass tunnel by the Alpine Montan.
M. DUBOST: Who controlled this work, supervisors or engineers?
VEITH: There was only SS supervision. The work itself was controlled by the engineers and the firms themselves.
M. DUBOST: Did these engineers belong to the Luftwaffe?
VEITH: On certain days I saw Luftwaffe officers who came to visit the Messerschmidt workshops in the quarry.
M. DUBOST: Were they able to see for themselves the conditions under which the prisoners lived?
VEITH: Yes, certainly.