Project Title

Mapping #NoG20. Documentation and Analysis of the Violent Escalation during the Protests against the G20 Summit in Hamburg 2017


The violent escalation in the context of protests against the G20 summit in Hamburg 2017 is a complex cluster of events that is hard to comprehend. To understand the developments that led to burning cars, looting, and excessive force used by police, the project reconstructs not only the rationales and interactions of heterogeneous actors, but also the spatio-temporal development of the events. The basis for this research is a detailed, data-driven documentation of the events. These data are used for exemplary analyses of the circumstances in which the violence emerged and the ways in which the event was framed and incorporated into competing narratives. The project brings together social scientists from different fields of expertise with the aim to make an empirical and fact based contribution to the public debate on the G20 protests.

Participating Institutions

Consortium leaders: Hamburg Institute for Social Research (HIS), Zentrum Technik und Gesellschaft (ZTG) at Technische Universität Berlin, and Institute for the Study of Protests and Social Movements (ipb), HIS Archive, more institutions below.


Hamburger Stiftung zur Förderung von Wissenschaft und Kultur, ZEIT-Stiftung, Rosa-Luxemburg-Stiftung, Mara und Holger Cassens Stiftung

Project Duration


Participating Researchers

Project Management
Dr. Stefan Malthaner (HIS)
Dr. Simon Teune (ipb/ZTG)
Dr. Dr. Peter Ullrich (ipb/ZTG)
Dipl. Soz. Philipp Knopp (ipb/ZTG)
Maren Heise (Studentische Mitarbeiterin, ZTG)

Academic Advisory Council
● Prof. Dr. Rafael Behr (Akademie der Polizei Hamburg)
● Dr. Dr. h.c. mult. Donatella della Porta (Centre of Social Movement Studies, Scuola Normale Superiore (SNS) Florenz/ipb)
● Prof. Dr. Wilhelm Heitmeyer (Institut für interdisziplinäre Konflikt- und Gewaltforschung Bielefeld)
● Prof. Dr. Wolfgang Knöbl (HIS)
Prof. Dr. Dieter Rucht (ipb/Wissenschaftszentrum Berlin für Sozialforschung)

Scientists in the Project Network
● Ass.-Prof. Dr. Fabian Frenzel (University of Leicester/ipb)
● Dr. Eddie Hartmann (Universität Potsdam, Centre for Citizenship, Social Pluralism and Religious Diversity)
● Nina Fraeser (HCU Hamburg)
● PD Dr. Sebastian Haunss (Universität Bremen, SOCIUM/ipb)
● Dr. Julia Hörath (HIS)
● Thomas Hoebel (Universität Hannover)
● Prof. a.d. PA Astrid Jacobsen (Polizeiakademie Niedersachsen)
● Lucca Jordan (Hamburg)
● Felix Lang (Universität Potsdam)
● Michael Plöse (HU Berlin/HWR)
● Chris Schattka (Universität Bielefeld)
● Stephanie Schmidt (Universität Jena/ipb)
● Dr. Nils Schuhmacher (ipb; in Kooperation mit Universität Hamburg, Fachbereich Kriminologische Sozialforschung)
Moritz Sommer (FU Berlin/ipb)
● Roman Thurn (LMU München)

Cooperating Scientist
● Dr. Daniela Hunold (DHPol Münster/ipb)

Contact Details for Interviews and Testimonies

Protesters, local residents, journalists, rescue staff, and others:

Dr. Julia Hörath & Dr. Stefan Malthaner (Hamburg Institute for Social Research)
E-Mail: mappingnog20 [ät] (Public PGP-Key)
Postal Address: Julia Hörath, Hamburger Institut für Sozialforschung, Mittelweg 36, 20148 Hamburg.

Police Officers:

Stephanie Schmidt (Universität Jena)
E-Mail: [ät] (Public PGP-Key)

Police officers, who wish to submit their testimony anonymously, are welcome to use the procedure detailed here.