De undersøgelser, der skal foretages om kriminalitet, kriminelle handlinger og domstolspraksis i EU, må således forudsætte sammenlignelige statistiske data, strafferetlige politikker, strukturelle forhold osv.
There is therefore a need for comparable data in terms of studies carried out, statistics, penal policy, structural factors and so on, and on crime, victims of crime and criminal justice in the European Union.