Todung Mulya Lubis *
Nullum crimen sine lege.

There is no crime without law, so the adage goes. It was summoned up on the eve of the Nuremberg Trial, which brought World War II criminals to court, as a rejection of attempts at trying war prisoners. In criminal law, the principle of legality is strictly followed. Schools of law have always taught that laws are never retroactive. And at the end of the war, the newly expounded regime of human ri