The Federal Bureau for Maritime Casualty Investigation (German: Bundesstelle für Seeunfalluntersuchung, BSU) is the German agency for investigating maritime accidents and incidents.
It is subordinate to the Federal Ministry of Transport, Building and Urban Development.
[1] Its head office is in the Federal Maritime and Hydrographic Agency of Germany (BSH) facility in St. Pauli, Hamburg-Mitte, Hamburg.
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