dual criminality principleglossary / DUAL-CRIMINALITY PRINCIPLE dual-criminality principle. The rule prohibiting the international extradition of a fugitive unless the offense involves conduct that is criminal in both countries. [Cases: Extradition and Detainers 5.] 词条贡献者 译者Carl,知名法学院保险学专业,擅长翻译各种与保险理赔追索相关的法律文件。