Qantitative and qualitative research methods will be combined and utilized within a triangulation. The quantitative approach is fundamental for the determination of the dimension of victimisation and fear of crime as well as for the theory guided research on correlations between the variables. The study is planned as a representative longitudinal study. An important question answered in this context is on the influence of a change in lifestyle on different dimensions of fear of crime and respectively on possible sexual victimisation. Tackling students as target group focuses on one stage of life and social environment with its certain patterns, which have to be recognized in order to develop effective measures, victim services and prevention. This is the first study researching the consequences of victimisation and fear of crime on success of studies and testing several criminological to understand the phenomena better.