Prof. Dr. Wolfgang Hoffmann-Riem, LL.M.

Honorary Member of the Executive Board

Professor Wolfgang Hoffmann-Riem, LL.M. (Berkeley), was director of the Hans-Bredow-Institut from 1979 until he became Senator of Justice for the Free and Hanseatic City of Hamburg from September 1995 to November 1997. He was also chairman of the newly created executive board of the institute from July 1998 to December 1999. Since December 1999, he has been an honorary member of the Executive Board.

He studied law in Hamburg, Freiburg, Munich, and Berkeley. He has been a professor of public law and administrative science at the University of Hamburg since 1974 and has been emeritus since 2008.

From 1999 to 2008, he was a judge at the Federal Constitutional Court (First Senate).

From 2007 to 2019, Wolfgang Hoffmann-Riem was a member of the European Commission for Democracy through Law (Venice Commission of the Council of Europe). He was a fellow at the Wissenschaftskolleg zu Berlin from 2009 to 2010. Since mid-2012, he has been an affiliate professor at Bucerius Law School in Hamburg.

The German President awarded Wolfgang Hoffmann-Riem the Grand Cross of the Order of Merit of the Federal Republic of Germany. He is also the recipient of the Emil von Sauer Prize. In 2024, he received an honorary doctorate from the Pontifical Catholic University of Rio Grande do Sul in Brazil.

Wolfgang Hoffmann-Riem researched and taught at Stanford Law School, Harvard Law School, Tulane Law School, Hastings College of the Law, and the Columbia Institute for Tele-Information. He was a member of the Expert Commission on New Media in Baden-Württemberg; the Inquiry Commission on New Information and Communication Technologies of the German Bundestag; the Inquiry Commission on Parliamentary Reform of the Parliament of the Free and Hanseatic City of Hamburg; and the “Commission on Media Responsibility,” which was appointed by Federal President von Weizsäcker. He publishes works on media law, media social science, constitutional and administrative law, economic and environmental law, police law, and legal sociology.

Contact information

Prof. Dr. Wolfgang Hoffmann-Riem, LL.M.

Leibniz Institute for Media Research | Hans-Bredow-Institut (HBI)
Warburgstraße 30 B
20354 Hamburg

  • +49 40 450 217-0 (Office Management)

Last update: 24.09.2026

Works by Prof. Dr. Wolfgang Hoffmann-Riem, LL.M.

Cover of issue 14 / 2026 of the journal "Media and Communication"
Open Access Publication

Can the Quality of Online Discussions Be Automatically Assessed—and Improved?

In their publication, Patrick Frey, Cornelius Puschmann (ZeMKI, University of Bremen), Smita Bhattacharya, and Gregor Wiedemann (HBI) explore whetherAI can measure the quality of online discussions. The study demonstrates that AI can identify violations of norms and serve as a tool for crafting counterarguments tailored to specific debates.

Cover of the current issue of the magazine “KJug” (3/2026)
New KJug Issue Has Been Published

Protecting Children and Young People in an Increasingly Digitalized World

In the latest issue of KJug, Claudia Lampert presents the EU Kids Online research consortium's findings on how children and adolescents view a potential social media ban. Kira Thiel shares insights from her dissertation, which examines how adolescents cope with problematic online experiences and the strategies they use to manage them.

Nonfiction Book Cover: No Child's Play
Recently Published!

No Child’s Play – Protecting Minors in the Digital Age

In his nonfiction book, Stephan Dreyer analyzes the complex field of youth media protection. Through his examination of legal regulations, actual usage, and technological developments, he offers valuable insights for individuals involved in this topic in the realms of practice, administration, politics, and academia.

Zwei Jugendliche, zu sehen von hinten oben, sitzen auf einer Mauer und blicken auf ein Handy
New DFG Research Project

Safeguarding Epistemic Trust in Adolescents: Conceptual Approaches and Policy Options

The interdisciplinary DFG project, “SETA: Protecting the Epistemic Trust of Adolescents: Conceptual Approaches and Policy Options,” conducted in collaboration with the Weizenbaum Institute, examines the state’s obligation to protect the epistemic trust of 13- to 17-year-olds without infringing on freedom of expression and information.

Cover des Arbeitspapiers Reuters-Bericht 2021
Report for Download

Reuters Institute Digital News Report 2021

The Reuters Institute Digital News Report, which provides an international comparison of news consumption, is being published for the tenth consecutive year.

Cover der Zeitschrift der Leibniz Gemeinschaft - Ausgabe 2/2026 zum Thema "Medizin"
Click Consultation

Consultation with Dr. Insta

The latest issue of the Leibniz Association’s magazine, which is part of the Science Year 2026, focuses on the topic of “Medicine.” Claudia Lampert, head of the Health Communication research group at the HBI, is interviewed about health influencers.

Blätter und bunte Zettel mit den Ergebnissen der Arbeiten von Gruppe 4, Gruppe 2 usw.
Article on the Media Research Blog

How Politically Empowered Do Young People Feel?

In a current project by Leonie Alatassi, students explore what political participation means to them, how it can be encouraged, and what barriers stand in the way. The first workshops show that many young people are eager to get involved. However, they need not only information, but also concrete support and opportunities to try things out and gain experience.

Bild aus der Research Clinic: eine Gruppe Menschen sitzt im Kreis und diskutiert
Report from the Research Clinic

Hype vs. Doom – How Can AI Reporting Become More Nuanced?

Public debates about AI often oscillate between technological utopianism and dystopian visions of the future. How can journalists report on a topic that is both ubiquitous and difficult to grasp in a nuanced and balanced way? A Research Clinic at the HBI explored the challenges of reporting on AI and discussed possible ways to address them.

Cover
Open Access Publication

German Public Broadcasting Corporations in the Age of Streaming Platforms and AI

In her Friedrich Ebert Foundation publication project, Magdalena Stratmann describes how public service broadcasting in Germany addresses the challenge of fulfilling its legal mandate amid drastically changed conditions in the digital information ecosystem.

Cover der Studie
Recently Published!

Exploring GPT Representation of Journalistic Culture

The study by Prof. Dr. Wiebke Loosen et al. examines how large language models (LLMs) such as ChatGPT can reflect journalistic value systems. To this end, the GPT-4o model was asked to answer questions from the “Worlds of Journalism Study,” which explores perceptions of journalistic roles, theories of knowledge, and ethical principles.

Historische Aufnahme des hr-Funkhauses am Dornbusch aus den 50ern
Media History Project

The History of the Regional Public Broadcasting Corporation of the Federal State of Hesse in the Postwar Period

In January 2029, the Regional Public Broadcasting Corporation of the Federal State of Hesse (Hessischer Rundfunk) will celebrate its 80th anniversary. To mark the occasion, Dr. Hans-Ulrich Wagner is conducting scholarly research on its origins. His research focuses specifically on corporate history, personnel decisions, and programming policy in the postwar period.

Cover Arbeitspapier Nr. 84
Brief Report in English

Babies and Toddlers in Monetised Social Media Profiles

Stephan Dreyer, Claudia Lampert, and Kira Thiel published an English summary of their study on babies and toddlers in family-influencing content. They present their findings on how babies and toddlers (ages 0–5) are depicted in German-language, commercially oriented social media profiles on Instagram, TikTok, and YouTube.

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