Gesetz zur Wiederherstellung des Berufsbeamtentums
As a Jewish doctor, Lewin lost his insurance licence at the end of April 1933 pursuant to the Law for the Restoration of the Professional Civil Service, and was forced to leave Germany. He initially intended to travel to Abyssinia, but decided to emigrate to France instead due to a heart condition. In December 1933, he wrote from Paris to ask the German authorities to transfer his finances.