Over the last decade, Nigeria has witnessed several high-intensity conflicts. It became a country under preliminary investigation by the International Criminal Court (ICC) following allegations of serious crimes. In 2013, the boko haram insurgency was classified as a “non-international armed conflict.” Commentators appear divided over the capacity and willingness of domestic institutions to manage crimes arising from or connected with conflicts in Nigeria. Those who argue for unwillingness often point to the struggle to domesticate the Rome Statute of the International Criminal Court (Rome Statute) as one of the clearest indication that there is not sufficient interest. This article interrogates the question of seeming impunity for serious crimes in Nigeria and makes a case for domesticating the Rome Statute through an amendment to the Crimes against Humanity, War Crimes, Genocide and Related Offences Bill, 2012 pending before the National Assembly.