Abstract
This article presents the significance and impact of Lemkin's concept of genocide on the development of international law. We will randomly present the jurisprudence of international courts such as the ICJ, the ICC, the ICTY and the ICTR, which analyzed the concepts of genocide, including cultural heritage crimes. Residual functions of the ICTY, including oversight of sentences and consideration of any appeal proceedings initiated since 1 July 2013, are under the jurisdiction of a successor body, the International Residual Mechanism for Criminal Tribunals (IRMCT). The article also invites attention to the impact on R2P and the human rights, as well as international state responsibility and the individual responsibility.