By Konaev, Margarita; Fedasiuk, Ryan; Corrigan, Jack; Lu, Ellen; Stephenson, Alex; Toner, Helen; Gelles, Rebecca.

From the webpage: "This data brief uses procurement records published by the U.S. Department of Defense and China's People's Liberation Army between April and November of 2020 to assess, and, where appropriate, compare what each military is buying when it comes to artificial intelligence. We find that the two militaries are prioritizing similar application areas, especially intelligent and autonomous vehicles and AI applications for intelligence, surveillance and reconnaissance."

Georgetown University. Walsh School Of Foreign Service. Center For Security And Emerging Technology. 2023.

By Jonathan Jay • Luke W. Miratrix • Charles C. Branas • Marc A. Zimmerman • David Hemenway

Although multiple interventions to remediate physical blight have been found to reduce urban firearm violence, there is limited evidence for demolishing vacant buildings as a violence reduction strategy. Starting in 2014, Detroit, MI launched a large-scale program that demolished over 10,000 buildings in its first 3 years. We analyzed the pre-post effects of this program on fatal and nonfatal firearm assaults and illegal drug violations at the U.S. Census block group level, using propensity score matching and negative binomial regression. Receiving over 5 demolitions was associated with a 11% reduction in firearm assaults, relative to comparable control locations, 95% CI [7%, 15%], p = 0.01. The program was associated with larger reductions in firearm assaults for the locations receiving moderate numbers of demolitions (between 6 and 12) than for locations receiving high numbers of demolitions (13 and over). No effects were observed for illegal drug violations and no evidence of spatial crime displacement was detected. These findings suggest that vacant building demolitions may affect gun violence.

J Behav Med (2019) 42:626–634

By Rose Kagawa , Benjamin Calnin , Colette Smirniotis , Magdalena Cerdá , Garen Wintemute , Kara E Rudolph

Former industrial cities facing economic challenges and depopulation often experience high levels of firearm and other forms of violence. Within these cities, violent crime often clusters in neighborhoods affected by high levels of vacant and abandoned housing. This study estimates the effects of building demolition in Detroit, Michigan on the subsequent risk of violent crime using property-level data and longitudinal targeted maximum likelihood estimation. The primary outcome is violent Crime Index crimes (homicide, rape, robbery and aggravated assault). We estimate effects for this category of crimes as a whole and for the subset involving firearms. Drug and other lower-level crimes are included as secondary outcomes. We compare the risk of experiencing each crime type following building demolition in Census blocks and block groups to an estimate of the risk had there been no demolition in the 1-3 quarters prior in 2017. There were >2600 total demolitions in about 1700 blocks in 2017 in Detroit. Nearly all demolished buildings were sourced from tax foreclosures. Estimates suggest the risk for all crime types tested would have been statistically indistinguishable from the observed crime risk had demolitions in the prior 1-3 quarters of 2017 not occurred. Our results run counter to most previous research on this topic, which tends to show a protective effect of demolition on violent crime. Understanding why our results differ may provide important insights into the types of demolition programs with the greatest potential to reduce violent crime.

Prev Med. 2022 Dec;165(Pt A):107257.

By John MacDonald , George Mohler , P Jeffrey Brantingham

Gun violence rates increased in U.S. cities in 2020 and into 2021. Gun violence rates in U.S. cities is typically concentrated in racially segregated neighborhoods with higher poverty levels. However, poverty levels and demographics alone do not explain the high concentration of violence or its relative change over time. In this paper, we examine the extent to which the increase in shooting victimization in Philadelphia, New York, and Los Angeles during the 2020-2021 pandemic was concentrated in gun violence hot spots, and how the increase impacted race and ethnic disparities in shooting victimization rates. We find that 36% (Philadelphia), 47% (New York), and 55% (Los Angeles) of the increase in shootings observed during the period 2020-2021 occurred in the top decile of census block groups, by aggregate number of shootings, and that the race/ethnicity of victims in these gun violence hot spots were disproportionately Black and Hispanic. We discuss the implications of these findings as they relate to racial disparities in victimization and place-based efforts to reduce gun violence.

Prev Med 2022 Dec;165(Pt A):107241.

By Julia P. Schleimer, Christopher D. McCort, Aaron B. Shev, Veronica A. Pear, Elizabeth Tomsich, Alaina De Biasi, Shani Buggs, Hannah S. Laqueur & Garen J. Wintemute

Background: Firearm violence is a significant public health problem in the United States. A surge in firearm purchasing following the onset of the coronavirus pandemic may have contributed to an increase in firearm violence. We sought to estimate the state-level association between firearm purchasing and interpersonal firearm violence during the pandemic. Methods: Cross-sectional study of the 48 contiguous states and the District of Columbia from January 2018 through July 2020. Data were obtained from the National Instant Criminal Background Check System (a proxy for firearm purchasing) and the Gun Violence Archive. Using negative binomial regression models, we estimated the association between cumulative excess firearm purchases in March through July 2020 (measured as the difference between observed rates and those expected from autoregressive integrated moving average models) and injuries (including nonfatal and fatal) from intentional, interpersonal firearm violence (non-domestic and domestic violence). Results: We estimated that there were 4.3 million excess firearm purchases nationally from March through July 2020 and a total of 4075 more firearm injuries than expected from April through July. We found no relationship between state-level excess purchasing and non-domestic firearm violence, e.g., each excess purchase per 100 population was associated with a rate ratio (RR) of firearm injury from non-domestic violence of 0.76 (95% CI: 0.50– 1.02) in April; 0.99 (95% CI: 0.72–1.25) in May; 1.10 (95% CI: 0.93–1.32) in June; and 0.98 (95% CI: 0.85–1.12) in July. Excess firearm purchasing within states was associated with an increase in firearm injuries from domestic violence in April (RR: 2.60; 95% CI: 1.32–5.93) and May (RR: 1.79; 95% CI: 1.19–2.91), though estimates were sensitive to model specification. Conclusions: Nationwide, firearm purchasing and firearm violence increased substantially during the first months of the coronavirus pandemic. At the state level, the magnitude of the increase in purchasing was not associated with the magnitude of the increase in firearm violence. Increases in purchasing may have contributed to additional firearm injuries from domestic violence in April and May. Results suggest much of the rise in firearm violence during our study period was attributable to other factors, indicating a need for additional research.

Injury Epidemiology (2021) 8:43

By Emily A. Wang, C Riley, G Wood, A Greene, N Horton, M Williams, P Violano, RM Brase, et al.

Introduction The USA has the highest rate of community gun violence of any developed democracy. There is an urgent need to develop feasible, scalable and community-led interventions that mitigate incident gun violence and its associated health impacts. Our community-academic research team received National Institutes of Health funding to design a community-led intervention that mitigates the health impacts of living in communities with high rates of gun violence. Methods and analysis We adapted ‘Building Resilience to Disasters’, a conceptual framework for natural disaster preparedness, to guide actions of multiple sectors and the broader community to respond to the man-made disaster of gun violence. Using this framework, we will identify existing community assets to be building blocks of future community-led interventions. To identify existing community assets, we will conduct social network and spatial analyses of the gun violence episodes in our community and use these analyses to identify people and neighbourhood blocks that have been successful in avoiding gun violence. We will conduct qualitative interviews among a sample of individuals in the network that have avoided violence (n=45) and those living or working on blocks that have not been a location of victimisation (n=45) to identify existing assets. Lastly, we will use community-based system dynamics modelling processes to create a computer simulation of the community-level contributors and mitigators of the effects of gun violence that incorporates local population-based based data for calibration. We will engage a multistakeholder group and use themes from the qualitative interviews and the computer si

BMJ Open 2020;10:e040277

By Public Safety Canada

Public Safety Canada (“Public Safety”) launched an engagement process in October 2018 to help inform policy, regulations and legislation to reduce violent crime involving firearms. Through this engagement, Public Safety sought to engage and hear from a wide range of stakeholders, which included those both in support of and opposed to limiting access to handguns and assault-style firearms. While the engagement was framed by the examination of a potential ban, the discussion explored several potential measures to reduce violent crime. The engagement process included a series of eight in-person roundtables, an online questionnaire, a written submission process, and bilateral meetings with a range of stakeholders. Given the diversity of perspectives on this issue, this report highlights key common themes and ideas shared by participants, as well as unique and divergent views. The goal of this report is to accurately represent “what we heard” on this issue. Overall Key Findings  There are polarized views on a potential ban and limiting access: Overall, participants were strongly polarized on the issue of banning handguns and assault-style firearms. The stakeholder views expressed in two of the engagement channels - the in-person dialogues and written submissions - provided a variety of perspectives both opposed to and in support of a ban. In contrast, most questionnaire respondents (representing a self-selected group of Canadians) were opposed to a ban.  Target crime and focus on enforcement: Many participants felt strongly that a ban would target law-abiding owners, rather than illicit firearms, and would not greatly impact crime reduction (particularly gang violence). As a result, many called for enhanced enforcement capacity for law enforcement and border services, as well as harsher punishments for firearms trafficking and gun-related crime.  Address underlying causes of firearm violence: One point of consensus among the diverse perspectives is the need to address the socioeconomic conditions that can lead to gun violence, which requires more support for community-level programs and initiatives. These factors include poverty, a lack of education or employment opportunities, lack of mental health supports and social exclusion.  Collect and share relevant data on gun crime: There is a need to improve the ongoing collection and sharing of data on gun crime, particularly in terms of sources of illicit firearms and the types of crime being committed. It was expressed that data is critical for supporting law enforcement and border agencies efforts, as well as informing policy and legislation.  Willingness for collaboration with the firearms community/industry: Many stakeholders representing various aspects of the firearms community want the opportunity to be more engaged and to collaborate with the federal government to develop solutions on this issue.  Need a multi-faceted approach: A wide range of approaches and ideas were discussed, which suggests that a multifaceted approach is needed to address this issue – rather than implementing a ban in isolation.

Ottawa: Public Safety Canada, 2023. 34p.

By Anthony Louis D’Agostino, Mindy Hu, Naihobe Gonzalez, Natalie Larkin, and Michela Garber

Oakland Unite aims to interrupt and prevent violence by administering grants through a diverse set of strategies, which includes shooting and homicide response. Each year, this strategy provides $1.4 million in grants to community-based organizations that in turn offer services to hundreds of individuals. Grantees support two groups affected by gun violence: (1) those who have been the victim of gun violence or serious assault, and (2), those who have lost a loved one to gun violence. Grantees aim to address the immediate needs of shooting victims and their families; provide longer-term supports as the victims recover from injury or loss; and prevent retaliatory violence. Oakland Unite convenes and coordinates the network of providers and serves as the liaison between the network and law enforcement. The Oakland Unite 2019–2020 strategy evaluation report provides an in-depth analysis of the implementation of the four shooting and homicide response programs (summarized below), and the outcomes of participants over the 2016–2019 period. The evaluation’s findings suggest that shooting and homicide response offers needed supports to victims of violence and contributes to reducing re-injury and retaliation following a violent incident. As a single shooting injury can cost the city more than $1 million, the investment in these services has the potential to save the city considerable spending in the long run.

Oakland, CA: Mathematica, 2020. 109p.

By Anthony A. Braga, Philip J. Cook, and Stephen Douglas

The police have the unique capacity to preempt and deter violence and to reduce the use of firearms in violent encounters. But overly aggressive policing tactics have contributed to a fraught relationship with low-income minority communities in which gun violence is heavily concentrated. Increased resources should be devoted to policing gun violence, but efforts of this sort must be targeted and disciplined. Effective policing requires a focus on the places and people that are at greatest risk; and there is a strong case for police agencies to increase the resources devoted to investigations of all criminal shootings, not just homicides. Successful policing of gun violence requires a productive working relationship with victims and their neighbors, which can be facilitated through observing community policing principles and respect for residents’ interests.

The ANNALS of the American Academy of Political and Social ScienceVolume 704, Issue 1, November 2022, Pages 158-180.

By Mary Allen

In 2020, consistent with historical trends, violent Criminal Code offences accounted for about one in every five crimes that came to the attention of police. Firearm-related violent crime typically represents less than 3% of police-reported violent crime in Canada; nevertheless, it has a significant emotional and physical impact on victims, families and communities. Additionally, rates of firearm-related violence have seen a general increase over the past several years. Concern about gun crime is long standing and a variety of approaches have been used to address it, including changes in legislation (see Text box 1). In April 2020, 22 people were killed in a mass shooting in Nova Scotia, the deadliest mass shooting in Canada in recent years. In particular, the Nova Scotia shooting led to a ban on assault-style firearms and renewed discussions around gun control and access to illegal weapons. This Juristat article uses data from the Uniform Crime Reporting (UCR) Survey and the Homicide Survey to provide a detailed examination of recent trends in firearm-related crime in Canada and the characteristics of these crimes over time and by region. In this article, firearm-related violent crime refers to victims of violent crimes where the most serious weapon present in the incident was a firearm and where police deemed the presence of the firearm relevant to the incident. Of note, for an incident to be considered firearm-related, a firearm need only be present during the commission of the offence, not necessarily used. This measure does not include non-violent Criminal Code offences where a firearm was present, including administrative offences such as unsafe storage, or firearm-specific violent offences such as discharging a firearm with intent where there was no victim identified. The article is divided into several sections beginning with an “Overview of firearm-related violent crime in 2020” examining geographic differences.1 This is followed by a section examining factors driving the change in firearm-related crime over 12 years, comparing two time periods (2009 to 2014 and 2015 to 2020) “Trends in firearm-related violent crime”. The article then examines the “Characteristics of firearm-related violent crime”, especially the types of violations involved and types of firearms present. This is followed by sections on “Characteristics of victims of firearm-related crime” as well as “Characteristics of individuals accused in violent incidents where a firearm was present”. Additional information is provided on non-violent weapons offences and firearm-related violent crimes involving organized crime or street gangs. The article uses data from the UCR trend file which contains information from 2009 to 2020. The article compares pooled information for the two six-year periods (2009 to 2014 and 2015 to 2020) to examine factors related to the increased rates of firearm-related violent crime observed in recent years.2 Combining the data into two six-year periods allows for a detailed examination of changes related to this overall increase. The periods were defined with reference to 2015 (before and after 2015) as 2015 was the year with the most notable increase in firearm-related crime over the 12 year period and this increase occurred in most jurisdictions. Moreover, 2015 was a notable year for crime in general as it marked the first increase in all police-reported crime since 2003. This article provides an analysis of police-reported firearm-related violent crime using currently available data. However, there are still many data gaps related to firearms used in crime. Statistics Canada has been working with police services to help improve information available on these types of crime.

Ottawa: Statistics Canada, 2022. 51p.

By Monica P. Bhatt, Sara B. Heller, Max Kapustin, Marianne Bertrand & Christopher Blattman

Gun violence is the most pressing public safety problem in American cities. We report results from a randomized controlled trial (N = 2, 456) of a community-researcher partnership called the Rapid Employment and Development Initiative (READI) Chicago. The program offered an 18-month job alongside cognitive behavioral therapy and other social support. Both algorithmic and human referral methods identified men with strikingly high scope for gun violence reduction: for every 100 people in the control group, there were 11 shooting and homicide victimizations during the 20-month outcome period. Fifty-five percent of the treatment group started programming, comparable to take-up rates in programs for people facing far lower mortality risk. After 20 months, there is no statistically significant change in an index combining three measures of serious violence, the study’s primary outcome. Yet there are signs that this program model has promise. One of the three measures, shooting and homicide arrests, declines 65 percent (p = 0.13 after multiple testing adjustment). Because shootings are so costly, READI generates estimated social savings between $182,000 and $916,000 per participant (p = 0.03), implying a benefit-cost ratio between 4:1 and 20:1. Moreover, participants referred by outreach workers—a pre-specified subgroup—show enormous declines in both arrests and victimizations for shootings and homicides (79 and 43 percent, respectively) that remain statistically significant even after multiple testing adjustments. These declines are concentrated among outreach referrals with higher predicted risk, suggesting that human and algorithmic targeting may work better together.

Pre-publication, 2023, 135p.

By Jonathan Colmer, Jennifer L. Doleac

Gun violence is a major problem in the United States, and extensive prior work has shown that higher temperatures increase violent behavior. In this paper, we consider whether restricting the concealed carry of firearms mitigates or exacerbates the effect of temperature on violence. We use two identification strategies that exploit daily variation in temperature and variation in gun control policies between and within states. Our findings suggest that more prohibitive concealed carry laws attenuate the temperature-homicide relationship. Additional results suggest that restrictions primarily decrease the lethality of temperature-driven violent crimes, rather than their overall occurrence, but may be less effective at reducing access to guns in more urban areas.

CESifo Working Paper No. 10525. : Munich Society for the Promotion of Economic Research - CESifo, 2023. 67p.

USED BOOK. MAY CONTAIN MARK-UP

By David Cullen

FROM THE COVER: “On April 20, 1999, two boys left an indelible stamp on the American psyche. Their goal was simple: to blow up their school, Oklahoma City-style, and to leave "a lasting impression on the world." Their bombs failed, but the ensuing shooting defined a new era of school violence irrevocably branding every subsequent shooting "another Columbine." When we think of Columbine, we think of the Trench Coat Mafia; we think of Cassie Bernall, the girl we thought professed her faith before she was shot; and we think of the boy pulling himself out of a school windowthe whole world was watching him. Now, in a riveting piece of journalism nearly ten years in the making, comes the story none of us knew. In this revelatory book, Dave Cullen has delivered a profile of teenage killers that goes to the heart of psychopathology. He lays bare the callous brutality of mastermind Eric Harris and the quavering, suicidal Dylan Klebold, who went to the prom three days earlier and obsessed about love in his journal. The result is an astonishing account of two good students with lots of friends, who were secretly stockpiling a basement cache of weapons, recording their raging hatred, and manipulating every adult who got in their way. They left signs everywhere, described by Cullen with a keen investigative eye and psychological acumen. Drawing on hundreds of interviews, thousands of pages of police files, FBI psychologists, and the boys' tapes…..”

NY. Hachette Books. 2009. 423p.

By Villarreal, Silvia; Barnhorst, Amy; Bonnie, Richard J.; Chavis, Kami N.; Davis, Ari; Frattaroli, Shannon; Roskam, Kelly; Swanson, Jeffrey W.; Horwitz, Joshua.

From the document: "This report summarizes the connection between alcohol and firearm use, reviews existing state laws, and makes a core set of recommendations for addressing the problem at the state level: 1) 'Limiting access to firearms by persons with a record of alcohol misuse'[;] 2) 'Limiting access to guns when and where alcohol is consumed[.]' If these policy recommendations are to be effective, it is also important to address the environment where alcohol is sold and consumed. We therefore consider additional policies known to be effective in reducing excessive alcohol consumption and its related harms. In the last section, the report reviews key legal considerations that can help policymakers successfully implement the policies recommended in the report. The comprehensive approach of this report highlights the often-unexplored link between alcohol and gun violence. It is intended to become an essential resource for researchers, practitioners, policymakers, law enforcement professionals, and others working to reduce gun violence."

Johns Hopkins Bloomberg School Of Public Health; Johns Hopkins Center For Gun Violence Solutions; Consortium For Risk-Based Firearm Policy. 2023. 39p.

By Abdul R. Shour, Ronald Anguzu, Yuhong Zhou, Alice Muehlbauer, Adedayo Joseph, Tinuola Oladebo, David Puthoff & Adedayo A. Onitilo

Methods. County-level SDOH data from the Agency for Health Care Research and Quality for 2019 were analyzed, covering 72 Wisconsin counties. The dependent variable was the number of firearm fatalities in each county, used as a continuous variable. The independent variable was residential racial segregation (Dissimilarity Index), defined as the degree to which non-White and White residents were distributed across counties, ranging from 0 (complete integration) to 100 (complete segregation), and higher values indicate greater residential segregation (categorized as low, moderate, and high). Covariates were income inequality ranging from zero (perfect equality) to one (perfect inequality) categorized as low, moderate, and high, community resilience risk factors (low, moderate, and high risks), and rural-urban classifications. Descriptive/summary statistics, unadjusted and adjusted negative binomial regression adjusting for population weight, were performed using STATA/MPv.17.0; P-values ≤ 0.05 were considered statistically significant. ArcMap was used for Geographic Information System analysis.

Results. In 2019, there were 802 firearm fatalities. The adjusted model demonstrates that the risk of firearm fatalities was higher in areas with high residential racial segregation compared to low-segregated areas (IRR.:1.26, 95% CI:1.04–1.52) and higher in areas with high-income inequality compared to areas with low-income inequality (IRR.:1.18, 95% CI:1.00–1.40). Compared to areas with low-risk community resilience, the risk of firearm fatalities was higher in areas with moderate (IRR.:0.61, 95% CI:0.48–0.78), and in areas with high risk (IRR.:0.53, 95% CI:0.41–0.68). GIS analysis demonstrated that areas with high racial segregation also have high rates of firearm fatalities. Conclusion. Areas with high residential racial segregation have a high rate of firearm fatalities. With high income inequality and low community resilience, the likelihood of firearm fatalities increases.

Injury Epidemiology volume 10, Article number: 14 (2023)

By Abigail Vegter and Donald P. Haider-Markel

Researchers have considered the role of perceived threat and fear of crime in shaping attitudes about gun regulation. We contribute to this literature by examining whether gun owners, who tend to oppose gun regulations, moderate their gun views when exposed to a gun-related threat. We argue that although exposure to threat can increase the desire to be armed, gun owners primed with a threat may soften their views on gun regulation relative to non-gun owners. We employ an experiment embedded within a nationally representative survey to test our hypotheses. Our analysis of the data from our survey supports the notion that gun owners generally oppose gun regulations, but exposure to a gun-related threat moderates their opposition to gun regulations. We discuss the limitations of our study and conclude with a discussion of the implications of these results for understanding public support for gun regulation in America.

Sociological Perspectives. Volume 65, Issue 1, February 2022, Pages 119-132

Tara D. Warner https://orcid.org/0000-0002-1382-1217 twarner2@uab.edu, Tara Leigh Tober, […], and David F. Warner'

Protection is now the modal motivation for gun ownership, and men continue to outnumber women among gun owners. While research has linked economic precarity (e.g., insecurity and anxiety) to gun ownership and attitudes, separating economic well-being from constructions of masculinity is challenging. In response to blocked economic opportunities, some gun owners prioritize armed protection, symbolically replacing the masculine role of “provider” with one associated with “protection.” Thus, understanding both persistently high rates of gun ownership in the United States (in spite of generally declining crime) alongside the gender gap in gun ownership requires deeper investigations into the meaning of guns in the United States and the role of guns in conceptualizations of American masculinity. We use recently collected crowdsourced survey data to test this provider-to-protector shift, exploring how economic precarity may operate as a cultural-level masculinity threat for some, and may intersect with marital/family status to shape gun attitudes and behaviors for both gun owners and nonowners. Results show that investments in stereotypical masculine ideals, rather than economic precarity, are linked to support for discourses associated with protective gun ownership and empowerment.

Sociological PerspectivesVolume 65, Issue 1, February 2022, Pages 97-118

Suzanna Fay

Gun reform after a major mass shooting in Australia has largely been heralded as a success. However, understanding how compliance is encouraged among the gun owning community with a history of opposing regulation is currently limited in systematic sociological research. Gun dealers in particular appear to be important for understanding levels of compliance and possibilities for promoting compliance, as they are simultaneously involved in the compliance process and subject to its enforcement as members of the gun owning community. This paper positions gun dealers as street-level bureaucrats responsible for implementing gun regulations and uses a Compliance Motivation framework to explore the possible motivations for compliance and their role in promoting compliance within the gun owning community. Findings are based on 28 in-depth interviews with gun dealers across Australia and demonstrate the challenging but important role that gun dealer’s play in enacting gun control policy

Sociological Perspectives. Volume 65, Issue 1: Special Issue: Sociological Perspectives on Guns in AmericaFeb 2022. Pages5-235

By Lava R. Timsina, PhD; Nan Qiao, MPH; Alejandro C. Mongalo, BS; Ashley N. Vetor, MPH; Aaron E. Carroll, MD, MS; Teresa M. Bell,

Despite being unable to purchase firearms directly, many adolescents have access to guns, leading to increased risk of injury and death. We sought to determine if the National Instant Criminal Background Check System (NICS) changed adolescents’ gun-carrying behavior. We performed a repeated cross-sectional study using National Youth Risk Behavior Survey data from years 1993 to 2017. We used a survey-weighted multivariable logistic regression model to determine if the NICS had an effect on adolescent gun carrying, controlling for state respondent characteristics, state laws, state characteristics, the interaction between the NICS and state gun laws, and time. On average, 5.8% of the cohort reported carrying a gun. Approximately 17% of respondents who carried guns were from states with a universal background check (U/BC) provision at the point of sale, whereas 83% were from states that did not have such laws (P < .001). The model indicated that the NICS together with U/BCs significantly reduced gun carrying by 25% (adjusted relative risk = 0.75 [95% confidence interval: 0.566–0.995]; P = .046), whereas the NICS independently did not (P = .516). Conclusions: Adolescents in states that require U/BCs on all prospective gun buyers are less likely to carry guns compared with those in states that only require background checks on sales through federally licensed firearms dealers. The NICS was only effective in reducing adolescent gun carrying in the presence of state laws requiring U/BCs on all prospective gun buyers. However, state U/BC laws had no effect on adolescent gun carrying until after the NICS was implemented.carrying in the presence of state laws requiring U/BCs on all prospective gun buyers.

Pediatrics. 2020;145(1):e20191071

By Todd R Ashworth , Claudia A Kozinetz

Background: Firearm-related violence is a significant public health issue in the US. Research has found an increase in guns used in crimes sourced from low gun law states into high gun law states. The purpose of this study is to evaluate the effect of distance from states without universal background checks (UBC), background checks at shows (BCS), or permit to purchase (PTP) laws on firearm homicide rates in states with them. Methods: States were identified based on their enactment of laws that are designed to prevent the private sale of firearms to criminals. Demographic data for each county were obtained for the years 2014 through 2017. The border distance from a county in a state with the evaluated gun laws to the nearest border state without the gun laws was obtained using Google Maps. Multiple regression analyses were performed to test the relationship between border distance and firearm homicide rates. Results: The regression model evaluating all formats found the border distance was negatively associated with firearm homicides (p=.009). The parameter estimate indicated as border distance increased, the firearm homicide rate decreased. When counties with UBC or PTP on all guns were evaluated separately from all formats model, the statistical significance was lost (p=.62). In counties where all handgun sales either require a background check or a PTP is required, the distance was also not statistically significant (p=.11).

Conclusions: This study provides evidence that there may be a mitigating effect on the reduction of firearm homicides in states that require background checks or PTP on private sales when there is a state in close proximity that did not have these laws. Limited counties at certain distances may have contributed to the insignificant findings in other models.

J Inj Violence Res. 2021 July; 13(2): 111-116. doi: 10.5249/ jivr.v13i2.1555