Concerns for student safety are a commonly cited reason for the presence of police in schools. But as the nation grapples with the appropriate roles and responsibilities of police more broadly, the time is right to shine a light on what we know about the effects of police in schools. This brief summarizes the research related to this question.…

Research has demonstrated that even after controlling for individual level attributes, individuals who join gangs commit more crimes than do nongang members. Furthermore, the offending level of gang members is higher when they report being active members of the gang. Therefore, gang membership clearly facilitates offending above and beyond…

In 2006, more than 6 million individuals were victimized by violent crimes. Although violence is below levels of the early 1990s, it remains high. The extent of violence and its impact highlight a critical need to develop and implement effective programs to reduce violence and victimization. Communities have initiated a wide range of such…