Development of a Peri­od­ic Sur­veil­lance Ba­ro­met­er for Germany

Germany needs an overview of its surveillance laws. In its 2010 ruling on data retention, the German Federal Constitutional Court cautioned against taking an isolated view of the individual regulations on data retention/data access, as this approach would prospectively no longer be adequate for evaluating surveillance measures under constitutional law. The ensuing debate among legal scholars was triggered by the idea of a “general surveillance status.” To date, however, there is still no concept or method for measuring and monitoring how citizens are quantitatively and qualitatively burdened by surveillance measures. The Friedrich Naumann Foundation for Freedom therefore commissioned the Max Planck Institute for the Study of Crime, Security and Law to research an operationally realizable concept for establishing a general surveillance status [Überwachungsgesamtrechnung – ÜGR]. This publication presents a preliminary report following the first phase of the project.


  • Poscher, R., Kilchling, M. (in collaboration with Kappler K., Landerer, L.): Entwicklung eines periodischen Überwachungs­barometers für Deutschland. Pilotprojekt – Max-Planck-Institut zur Erforschung von Kriminalität, Sicherheit und Recht, Abteilung Öffentliches Recht, Freiburg i. Br. Friedrich-Naumann-Stiftung für die Freiheit, Potsdam-Babelsberg 2021, 15 pages.
    ISBN: 978-3-948950-12-5.

Full text [in German]