Double Criminality Rule in International Criminal Law of Iran

State-sovereignty-oriented approach has been gradually supplanted by human-being oriented approach in international criminal law. Double criminality rule is a philanthropy rule. The rule is one that is more or less uniformly applied in principle in extradition law and process on a worldwide basis. However, the particular construction differs from jurisdiction to jurisdiction, often quite considerably. The rule in some jurisdiction principles could fix some defects and criticisms. However, this rule is a serious obstacle in extradition between states. For this reason extradition replaced by some tools such as European Arrest Warrant in some countries. But improvement of process is not proven in any way. The rule on the transfer of sentenced of persons is also considered. conduct underlying the offence for which assistance is sought must a criminal offence under the laws of both States Parties regardless of whether the laws of the requested State in the same category of crime is a crime or an offense with the same word to call the requesting State.