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 资深译员Tommy,毕业于亚洲顶尖的高级翻译学院,擅长翻译有关基础设施/交通运输领域的法律文件。