Reto Walther is a doctoral student at the University of Zurich, Faculty of Law. His research project on subsidiarity and procedural review in the ECHR system is kindly financed by the Swiss National Science Foundation’s Doc.CH programme and includes stays at the PluriCourts Centre (University of Oslo) and the Max Planck Institute for Comparative Public Law and International Law (Heidelberg). Reto held research positions at the Universities of Zurich and Lucerne as well as the University of Applied Sciences Zurich. Previously, he gathered work experiences in legal practice, NGOs, and banking. He has published on European and international human rights law and constitutional law.