In that position, Wolff shared responsibility for standard police functions such as security, maintenance of prisons, supervision of concentration camps, and forced labor camps as well as the deportation of forced laborers with Wilhelm Harster, who was the Commander in Chief of the Security Police. When Wolff became Plenipotentiary General of the German Wehrmacht in July 1944, he also became responsible for anti-partisan warfare in occupied Italy. By now Wolff commanded the police and the entire rear army in Italy. So far Wolff's involvement in war crimes in Italy remains largely unclear, partially because source material on the degree to which SS units participated in Nazi security warfare is lacking. Although it seems as if US investigators were in possession of incriminating material in 1945, that indicated Wolff's approval of the executions that became known as the Ardeatine massacre, this evidence was deemed not sufficient for criminal charges. On 9 December 1944, Wolff was awarded the German Cross in Gold for using Italian units, with secondary German units, to destroy partisans and for the "maintenance of war production in the Italian territory". During this period he approved the project of the Marnate's Bunker, close to the German command of Olgiate Olona. By 1945 Wolff was acting military commander of Italy.