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.…

Since the 1960s, crime and violence have been increasing in schools. This document focuses on crime involving physical harm or the threat of physical harm to a student or staff member on school grounds or at school events. Chapter 1 reviews past trends in school violence, describes the current extent of the problem, and explores some of its…