As the war was drawing to a close in 1945, Verschuer moved the files of the KWIfA into the Western part of Germany, hoping for a more favorable response from the advancing Allied armies than from the advancing Soviet Army. In late 1945 or early 1946, he petitioned the mayor of Frankfurt to allow him to reestablish the KWIfA. However, the commission in charge of rebuilding the Kaiser Wilhelm Gesellschaft decreed that "Verschuer should be considered not as a collaborator, but one of the most dangerous Nazi activists of the Third Reich." The KWIfA was not reestablished.