The primary goal of international criminal law is to deter and punish individuals for serious crimes of international concern, such as genocide, crimes against humanity, war crimes, and the crime of aggression.

The International Criminal Court (ICC) is the international court responsible for prosecuting individuals accused of committing the most serious crimes of international concern, such as genocide, crimes against humanity, war crimes, and the crime of aggression.

The principle of complementarity in international criminal law states that international courts should only prosecute individuals if national courts are unwilling or unable to do so. This principle is designed to ensure that international courts do not interfere with the domestic criminal justice systems of states.

The future of international criminal law faces a number of challenges, including the lack of universal ratification and implementation of the Rome Statute, the difficulty in obtaining evidence and witnesses in international criminal cases, and the political and diplomatic pressures that can be exerted on international courts.

There are a number of potential reforms that could be made to strengthen international criminal law, including expanding the jurisdiction of the ICC to include new crimes, creating a more effective system for obtaining evidence and witnesses in international criminal cases, and establishing a mechanism for enforcing international criminal court judgments.

Civil society organizations play a vital role in the future of international criminal law by raising awareness of international criminal law and its importance, advocating for the ratification and implementation of the Rome Statute, providing support to victims of international crimes, and monitoring the activities of international criminal courts.

There are a number of emerging trends in international criminal law, including the increasing use of international criminal law to prosecute non-state actors, the growing recognition of the importance of gender-based crimes and crimes against children, and the development of new mechanisms for international cooperation in criminal matters.

The future of international criminal law is bright. International criminal law is becoming more widely accepted and implemented, international criminal courts are becoming more effective in prosecuting individuals accused of committing serious crimes of international concern, and international criminal law is playing a greater role in promoting peace and security among nations.