Recently the bodies of national justice had been the only effective institutional system But as the result of globalization and in order to protect the interests of the international community there appeared a great number of international organizations and bodies particularly in the sphere of penal justice.The article dwells on the issue of different bodies and authorities of international penal justice In author’s opinion it is a system of bodies the activities of which are directed to the realization of international justice in criminal cases Particularly the author analyzes different aspects of the national authorities and bodies and concludes that they possess no dual nature and are only state bodies and they are involved in the international criminal process in this capacity Further on different kinds of national bodies of penal justice, their interaction between each other and the ways they participate in international penal justice are analyzed.The main conclusion the author arrives to is that the national bodies are simultaneously the bodies of international penal justice and act in this capacity what is greatly supported by the fact that the bodies of international organizations in the sphere of penal justice cannot act effectively without interaction with national authorities There is strong connection between them as their main aims are the same.