The research project ''Insecurities in European Cities'' was supported by the European Commission within its 5th Framework Programme: Key Action - Improving the Socioeconomic Knowledge base. The scientific positioning of the study is in criminology and urban sociology and it has an applied side by involving community crime prevention and community safety, as well as an orientation to comparing cultural patterns of insecurity, anxiety and fear by the parallel study of five large European cities: Amsterdam, Budapest, Hamburg, Krakow and Vienna. Put in a sentence the research project is about insecurity of cities from the perspective of their inhabitants and what can be done about it. To obtain information both in the individual cities and for comparing them to each other, the formulation of the methods and instruments applied were standardised as far as possible.