Fetzer received his doctorate from the University of Mannheim Law School and holds an LLM from Vanderbilt University. He is also a Professor of Law at the TU Dresden Law School, specializing in Telecommunications Law, Media Law and Privacy/Data Protection Law. His home institution, the University of Mannheim, offers a Masters of Comparative Law taught in English, and he regularly teaches classes in comparative administrative law. He also holds a permanent teaching appointment in European Competition Law at the Mannheim Business School, which is the top rated business school in Germany.