In an ongoing research project, 105 comprehensive and secondary schools in Stockholm were randomly selected and data collected about police recorded crimes. Principals and community police officers were also surveyed about liaison with schools. A study of self-reported student and teacher victimization was included in the project. In addition, the study investigated whether schools located in socially unstable neighborhoods (e.g., areas with a high proportion of low-income inhabitants, single-parent families and predominantly public housing tenants) have higher levels of crime. The paper includes results from the Stockholm survey concerning proactive cooperation between schools and police for crime prevention. The English and Swedish data showed a remarkable similarity regarding the distribution of school crime and the time interval between revictimization. The Stockholm study found that the social status of the school area is significantly related to the level of school crime and that school and police cooperation does not seem to be related to the aggregated crime level. Figure, tables, references