These activities brought Germaine Lubin under suspicion of collaboration with the Nazis, and after the Liberation in 1944 she was arrested and imprisoned. At her trial in 1946, she was acquitted of the accusation after a number of testimonials were produced from people she had helped during the war. Nevertheless, she was sentenced to "dégradation nationale" for life (subsequently reduced to five years), confiscation of property, and "interdiction de séjour" (a form of exile). She found refuge with friends in Italy.