Overview
- The Higher Administrative Court ruled on Thursday, August 20, 2026, that Hamburg lawfully barred two small Attac outdoor gatherings planned for 7 July 2017 and reversed a 2022 lower-court decision.
- The court said the assemblies would likely have helped cause targeted or de facto blockades of transport routes and that those risks formed the factual basis for a proportionate ban to protect summit participants, police and bystanders.
- Attac had registered two 50-person demonstrations at the Afrika-Haus and the Afrika-Verein office inside a citywide G20 no-go zone, and the city offered alternative sites outside that zone before forbidding the events.
- The judgment is not final because the court has admitted a revision to the Federal Administrative Court, and Attac says it will study the written ruling and consider further legal steps.
- Judges grounded their decision in the violent context of the 2017 G20 summit, when riots injured hundreds of police, and the ruling could shape how German courts test future preemptive assembly bans and protest rights.