Cases such as the Maastricht ruling by the German Federal Constitutional Court or the 'Crotty; decision by the Irish Supreme Court have gone down in the history of European integration as outstanding examples of intervention by judicial actors in important political processes. In this book, Dr. Castillo Ortiz makes for the first time a comprehensive analysis of all such rulings by national higher courts on European Union treaties issued during their processes of ratification.

Using an interdisciplinary Law and Politics approach and a sophisticated methodological strategy, the book...