Gun violence is a critical public safety concern in the United States. In 2006 California implemented a unique firearm monitoring program, the Armed and Prohibited Persons System (APPS), to address gun violence in the state. The APPS program first identifies those firearm owners who be-come prohibited from owning one due to federal or state law,…

This dissertation adds to the economic study of gun and marijuana laws. Chapter 1 studies the impact of stand your ground laws (SYGs) on traffic fatalities. Chapter 2 investigates the effects of campus concealed carry laws (CCCs) on higher education outcomes. Chapter 3 looks at the impact of medical marijuana laws (MMLs) on youth crimes. The first…

A rise in the number of school shootings over time has driven increasing attention to school safety. However, school shootings are not the only physical safety threat students may encounter at school. Other types of violence include sexual assault, robbery, physical attack or fights, and threats of physical attack (with or without a weapon). In…

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.…

The "defund the police" movement has recently called for the removal of police--or school resource officers (SROs)--from schools. This call is driven by concerns that SROs may heighten student contact with criminal justice or lead to disproportionately harsh disciplinary consequences. This study uses linked disciplinary, academic,…

School resource officers' (SROs) presence (e.g., engagement in patrol, carrying firearms, etc.) and prevention (e.g., mentoring, teaching) roles have not been distinguished in investigations of SROs' association with student outcomes. A model predicting nonviolent incidents and serious violent incidents reported to police from SRO presence and…

In response to rising rates of firearms violence that peaked in the mid-1990s, a wide range of policy interventions have been developed in an attempt to reduce violent crimes committed with firearms. Although some of these approaches appear to be effective at reducing gun violence, methodological variations make comparing effects across program…

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…