This text describes the principles of Islamic international criminal law and presents an exposition of existing Islamic international crimes. The purpose of this study, comparing the system of international criminal law with that of Islamic international criminal law, is to evaluate certain important regulations in both these systems and examine them in the light of the growing development of international jurisprudence, thereby establishing that conflicts and apparent differences between the two systems are not principal but political, ideological, procedural and, more importantly, a result of specific interpretations of both legal systems. This is important in the case of frequent international conflicts relating to the basic principles of human rights.;The book aims to serve as a source regarding the juridical rights of those who belong to different minority groups. It also examines the possible co-operation and accommodation of the two systems in solving important questions surrounding the criminality, prosecution and punishment of criminals at an international level.