The aim of this article is to give an overview of the tasks and the function of the Supreme Court of Justice in interaction with the other two “Highest Courts” of the Republic of Austria on the one hand, and the European Court of Human Rights as well as the Court of Justice of the European Union on the other hand. For this purpose introductory remarks will examine the Austrian understanding of the judiciary as a state power and judicial independence. The closing part of the article will particularly look into the role of the Supreme Court as highest instance in criminal matters.