Abstract
The Second World War offered the opportunity, to the international community, to realize the total lack of international law prohibiting the worst inhumane acts. Particular gravity, the large number of casualties as a result of persecution or extermination of whole groups of people highlights crimes against humanity among offenses punishable by the criminal law, thus requiring additional scientific research and a more elaborate analysis. Effective punishment of crimes against humanity is an important element in the prevention of such crimes, the protection of human rights and fundamental freedoms, such as to encourage promote international peace and security. Crimes against humanity were first regulated by the rules of international criminal law after the Second World War as a response to the atrocities committed by the Nazi and Japanese fighting forces in the occupied territories, against the local population and in the death camps, of broad categories of people based on national, ethnic or racial.