During World War II and the German occupation of France, Morris served as a collaborationist for the Nazis and Vichy France. The nature of her accused collaboration varies, with some, such as writer Raymond Ruffin, claiming one of her main responsibilities during the war was to foil the operation of the Special Operations Executive, a British-run organisation that helped the Resistance. He also suggested that, as well as being a spy for the Nazis, she would have been involved in the torture of suspects, and for all of these activities, she was sentenced to death in absentia.