TY - JOUR N2 - This article discusses definitions of crimes included into the Act of 18 December 1998 on the Institute of National Remembrance – Commission for the Prosecution of Crimes against the Polish Nation, and their usefulness in prosecuting individuals who committed international crimes. It is argued that the provisions of the Act cannot constitute a ground for criminal responsibility of individuals, as they violate the principle of nullum crimen sine lege certa. L1 - http://journals.pan.pl/Content/110386/PDF/14_Wiercz.pdf L2 - http://journals.pan.pl/Content/110386 PY - 2017 IS - No XXXVII EP - 286 KW - crimes against humanity KW - crimes against peace KW - genocide KW - ICC KW - ICTR KW - Institute of National Remembrance KW - war crimes A1 - Wierczyńska, Karolina PB - Institute of Law Studies PAS PB - Committee on Legal Sciences PAS DA - 2017 T1 - Act of 18 December 1998 on the Institute of National Remembrance – Commission for the Prosecution of Crimes against the Polish Nationas a Ground for Prosecution of Crimes against Humanity, War Crimes and Crimes against Peace SP - 275 UR - http://journals.pan.pl/dlibra/publication/edition/110386 T2 - Polish Yearbook of International Law ER -