School security is an issue faced by all school districts. Some school districts in the state of Missouri made the decision to arm members of their staff to provide an additional layer of defense. This qualitative study looks at the lived experiences of PK-12 school staff members who carry a concealed weapon for Shield Solutions. The participants…

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,…

Inhibitory control has been identified as a prominent factor in shoot/don't-shoot errors. Although emerging evidence continues to support this relationship, there is critical nuance and depth that can significantly alter this connection between a cognitive capability and a critical real-world application. For example, presenting shoot/don't-shoot…

Lead poisoning from ingestion of bullet fragments in gut piles and unretrieved deer carcasses continues to cause mortality in bald eagles. To address this issue, the Midwest region of the U.S. Fish and Wildlife Service (USFWS) initiated an outreach program during 2016-2018 encouraging hunters to voluntarily use nonlead ammunition while deer…

Limited research has been conducted on the state-level factors that may be associated with intentional school shootings. We obtained school shooting data from the "Washington Post" that identified any act of intentional interpersonal gunfire in a K-12 school over the course of two decades. We also compiled new data on active school…

Schools in the United States need to be prepared for a possible school shooting. However, the types of planning and security measures differ across states and there is not a national policy center or central authority that standardize the quality and feasibility of the safety and security plans. Little research exists on teachers' perceptions of…

We examined the effects of acute alcohol on eyewitness memory for a simulated armed robbery under laboratory conditions. Alcohol and placebo participants viewed a slide series showing a target male taking a laptop from a helpdesk assistant, either on loan or at gunpoint. Following a brief retention period, participants responded to…

Youth interpersonal firearm violence disproportionately affects Black youth, with residential racial segregation as a key determinant. Racially segregated neighborhoods, which are economically isolated (e.g., neighborhood disadvantage), are linked to increased exposure to violence. This exposure, in turn, is a determinant of youth firearm…

Observers' memory for a person's appearance can be compromised by the presence of a weapon, a phenomenon known as the weapon-focus effect (WFE). According to the unusual-item hypothesis, attention shifts from the perpetrator to the weapon because a weapon is an unusual object in many contexts. To test this assumption, we monitored participants'…

Scholars theorize that the nature of school gun violence varies across school settings. Yet, there is a lack of statistical research testing this idea. This study investigates contextual factors associated with six forms of school gun incidents (N = 1,238) over a 40-year period (1980-2019) in the United States. To conduct the analyses, school,…

It is challenging to understand the complexity and multiple causes of school violence. Given the apparent rise in many forms of violence in schools, and the dire consequences to those impacted by violence, it is vital to better support children and youth in both preventing violence and responding appropriately. "Issues Around Violence in…

Intelligent tutoring systems (ITSs) may augment military training systems and mitigate existing limitations in training personnel and resources. A study was conducted to investigate the effectiveness of an embedded rifle marksmanship ITS for Moving Targets (MT-ITS). MT-ITS has two main components: (1) a Smart Sight System that provides a…

Preventing mass shootings in the United States, particularly those occurring in school settings, is an important priority for families, government leaders and officials, public safety agencies, mental health professionals, educators, and local communities. What does the evidence say about how to detect, prevent, and respond to these tragic events?…

Ryan Gainer, a 15-year-old African-American youth on the Autism-spectrum, was shot and killed by police officers in March 2024. The authors reflect on the tragedy of this incident and the harms that such police actions inflict on people living with disabilities and/or mental illnesses, as well as on their families, loved ones, and communities.…

At the end of the 1915 Gallipoli campaign during World War 1, Lance Corporal William Scurry saved thousands of lives with his one simple invention. As the ANZAC soldiers prepared to withdraw from the disastrous 9-monthlong Gallipoli campaign, Scurry came up with the idea of setting up a large battery of rifles that would discharge automatically…