 Arrested by the Gestapo on 6 November 1943, she was subject to torture, but refused to give information about her comrades.After the arrest of the Manouchian Group, the Gestapo published a series of propaganda posters, named "l'Affiche Rouge", which depicted its members, Bancic included, as "terrorists".On 21 February 1944, she, Manouchian, and 21 others were sentenced to death—all male defendants were executed later that day at Fort Mont-Valérien; since a law prevented women from being executed on French soil, Bancic, the only female in the Group, was deported to Stuttgart and decapitated in the local prison's courtyard on the date of her 32nd birthday.