Sören Zimmermann, LLM Eur, Research Assistant, Institute for Public Law, Goethe-University Frankfurt; Lecturer, Hessian University of Applied Sciences for Police and Administration. For correspondence: <mailto:zimmermann@jur.uni-frankfurt.de>. This report was substantially written at the Buchmann Faculty of Law, Tel Aviv University, where I had the privilege of being a Visiting Research Fellow in November 2018 with a fellowship by the DAAD. I am grateful to Prof Michael Birnhack for his critical and helpful comments on a first draft of this report.