Final answer:
Genocide is indeed a crime under international law as per the 1948 UN Convention and the ICC's mandate. The Convention clearly defines genocide and its constitutive acts, while the ICC ensures perpetrators are held responsible.
Step-by-step explanation:
In regards to the 1948 UN Convention on the Prevention and Punishment of the Crime of Genocide, it is true that genocide is a crime under international law. The Convention defines genocide broadly as acts committed with the intent to destroy, in whole or in part, a national, ethnical, racial or religious group. These acts include killing members of the group, causing serious bodily or mental harm to members, deliberately inflicting conditions calculated to bring about its physical destruction, imposing measures to prevent births, and forcibly transferring children of the group to another group.
The establishment of international criminal tribunals and the International Criminal Court (ICC) underscores the international community's commitment to prosecuting those responsible for genocide. These judicial bodies are essential in ensuring that perpetrators of such heinous crimes are brought to justice and to end the culture of impunity, thus reinforcing that genocide is indeed a recognized crime under international law.