Is the ‘social question’ re-emerging in the guise of an urban question of risk? To this interrogation, the project intends to respond by analysing, in a large metropolis, the spatial inscriptions of insecurity accord-ing to the socio-professional distribution in urban spaces and to political positions. Three databases will be mobilised, at the IRIS (small areas akin to census tracts, averaging 3 000 inhabit-ants) level, to reach a fine-grained level of territorial analysis. Relying on victimisation and insecurity sur-veys in the Paris metropolitan region, it will study how crime and victimisation combine in a variety of patterns and will determine their specific spatial distribution. These findings (from the CESDIP) will be cross-analysed with data on the social division of the Paris metropolitan region and the trends thereof (OSC) and with data on political behaviour based on the election results released by the Ministry of the Interior. A comparison of the trends in insecurity, socio-professional distribution and political behaviour across the Paris metropolis over more than15 years (1998-2015) will also be achieved with these databases. The merging of the data will be completed by their allocation to the IRISes on a mapping database. The next step will be a typological analysis of the data bases thus constituted. Advanced geometric data analysis (Multiple Factor Analysis, Multiple co-Inertia Analysis, STATIS) will be mobilised to circumvent the pitfalls of ecological fallacy occurring in traditional modelling approaches. The use of sophisticated clustering methods (Kernel Regularized Least Square), however, will formalise relations between the ob-served variables. The databases assembled as part of this project as well as the maps matching the polling stations with the IRISes will constitute a perennial output to be disseminated to the scientific community, thus offering many opportunities for future secondary analysis or comparisons at the regional French and at the international levels. Dissemination of this steadied database will be facilitated by the recently created Observatoire scientifique du crime et de la justice (OSCJ http://oscj.cesdip.fr/), an academically based monitor of crime and justice based at CESDIP within the framework of ISIS (Interactions Between Science, Innovation and Society), a Paris-Saclay programme.