The "Marburg Security Day" took place again on 21.09.2017. Subject of the congress: What threats currently exist and how people, values and buildings can be protected? More than 100 interested listeners from governmental organizations, private companies, architects offices and security advisers commended the informative lectures from the renowned experts. Photo: Panel discussion with all participants after the presentations. From left to right: Walther Sälzer (Initiator of the congress), Prof. Dr. Gebbeken (University of the German Armed Forces), Klaus Behling (ZVM security consultant), Claudia Schick (Moderator), Sanja Pohl (architecture office Obermeyer planning + consulting), Christoph Becker (Federal German Criminal Police Office), Andreas Hallet (DVAG), Dr. Waßmuth (IABG).