The principles of international co-operation in the detection, arrest, extradition and punishment of persons guilty of war crimes and crimes against humanity were adopted by the UN General Assembly in December of 1973. The principles aimed at bringing about international co-operation in the detection, arrest, extradition and punishment of persons guilty of war crimes and crimes against humanity. The principles state that wherever war crimes and crimes against humanity are committed, they should be investigated, and any person or persons detected to have committed such crimes shall be subject to arrest, trial and punishment if found guilty. Respective States shall try their nationals for war crimes against humanity.
The States are called upon to co-operate in halting and preventing war crimes and crimes against humanity, and are urged to adopt measures necessary for that purpose. For such co-operation, the States are required to act in conformity with the provisions of the Charter of the United Nations and of the Declaration on Principles of International Law concerning Friendly Relations and Co-operation among States in accordance with the Charter of the United Nations.
