By Rosanna Smart

Background

Despite growing evidence about how state-level firearm regulations affect overall rates of injury and death, little is known about whether potential harms or benefits of firearm laws are evenly distributed across demographic subgroups. In this systematic review, we synthesized available evidence on the extent to which firearm policies produce differential effects by race and ethnicity on injury, recreational or defensive gun use, and gun ownership or purchasing behaviors.

Main body

We searched 13 databases for English-language studies published between 1995 and February 28, 2023 that estimated a relationship between firearm policy in the USA and one of eight outcomes, included a comparison group, evaluated time series data, and provided estimated policy effects differentiated by race or ethnicity. We used pre-specified criteria to evaluate the quality of inference and causal effect identification. By policy and outcome, we compared policy effects across studies and across racial/ethnic groups using two different ways to express effect sizes: incidence rate ratios (IRRs) and rate differences. Of 182 studies that used quasi-experimental methods to evaluate firearm policy effects, only 15 estimated policy effects differentiated by race or ethnicity. These 15 eligible studies provided 57 separate policy effect comparisons across race/ethnicity, 51 of which evaluated interpersonal violence. In IRR terms, there was little consistent evidence that policies produced significantly different effects for different racial/ethnic groups. However, because of different baseline homicide rates, similar relative effects for some policies (e.g., universal background checks) translated into significantly greater absolute differences in homicide rates among Black compared to white victims.

Conclusions

The current literature does not support strong conclusions about whether state firearm policies differentially benefit or harm particular racial/ethnic groups. This largely reflects limited attention to these questions in the literature and challenges with detecting such effects given existing data availability and statistical power. Findings also emphasize the need for additional rigorous research that adopts a more explicit focus on testing for racial differences in firearm policy effects and that assesses the quality of race/ethnicity information in firearm injury and crime datasets.

Inj Epidemiol. 2023; 10: 67.

By Glenn L. Pierce; David Lambert; Daniel Trovato; and Peter Gagliardi

This study examines the innovative use of firearms related evidence to enhance violent crime investigations in New Jersey. This effort changed the use of firearms forensic evidence from a sole evidential focus to one that also incorporates a premonitory focus required to generate investigative leads. This project demonstrated the critical importance of fusing firearms forensic evidence such as ballistics imaging with locally available information, such as arrest and incident data on a statewide basis. This study further demonstrated the value of ballistics imaging to connect previously unconnected incidents, individuals, and weapons particularly when combined with other law enforcement data sets. This project demonstrated the critical importance of fusing firearms forensic evidence such as ballistics imaging with locally available information, such as arrest and incident data on a statewide basis. This study further demonstrated the value of ballistics imaging to connect, previously unconnected incidents, individuals, and weapons particularly when combined with other law enforcement data sets. It illustrated the critical need of information sharing across forensic, criminal intelligence (such as fusion and real time crime centers), and investigative entities across all levels of government – local, state, and federal - in supporting violent crime suppression efforts. The study is a mixed methods approach to policy analysis using both quantitative and qualitative analysis. The researchers’ analyzed ballistics imaging submissions over a multi-year period in addition to examining open source and agency documents that tracked many of the crime reduction projects the New Jersey State Police incorporated into their crime gun intelligence effort.

Boston: Northeastern University, 2023. 120p.

By V A Pear , J P Schleimer , A J Aubel , S Buggs , C E Knoepke , R Pallin , A B Shev , E Tomsich , G J Wintemute , N Kravitz-Wirtz

Extreme risk protection orders (ERPOs) provide a civil mechanism to temporarily remove firearm access from individuals at high risk of harming themselves or others. Evidence and theory suggest that ERPOs can prevent firearm-related harm, but the policy's impact on racial/ethnic equity is largely unknown. To examine potential inequities by race/ethnicity in public perceptions and use of California's ERPO law, we drew on two complementary data sources: 1) a 2020 state-representative survey of California adults, and 2) ERPO court documents for the first 3 years of policy implementation (2016-2018). Majorities (54-89%) of all racial/ethnic groups reported that ERPOs are at least sometimes appropriate, and 64-94% were willing to ask a judge for an ERPO for a family member. However, Black and Hispanic/Latinx survey participants less often perceived ERPOs as appropriate and were less willing to serve as petitioners, with Black participants citing lack of knowledge about ERPOs and not trusting the system to be fair as their top reasons for unwillingness. Similarly, review of ERPO court documents revealed that no family or household members served as petitioners for Black and Hispanic/Latinx ERPO respondents. Additionally, Black respondents were the least likely to have documented access to a firearm and legal representation in court. Racial/ethnic equity in ERPO use may be improved by reducing barriers to petitioning, incorporating non-law enforcement intervention professionals like behavioral health specialists into the ERPO process, providing legal assistance to respondents and petitioners, and investing in the social safety net.

Prev Med. 2022 Dec;165(Pt A):107181. doi: 10.1016/j.ypmed.2022.107181. Epub 2022 Aug 6. PMID: 35940474.

By Hillel Y. Levin & Timothy D. Lytton

In 2005, Congress passed the Protection of Lawful Commerce in Arms Act (PLCAA), granting the firearms industry sweeping immunity from civil lawsuits. However, PLCAA immunity is not absolute. This Article demonstrates that both state and federal courts have fundamentally misread PLCAA when adjudicating cases involving the scope of gun industry immunity. Properly understood, PLCAA permits lawsuits against the gun industry so long as they are based on statutory causes of action rather than common law. While broadly preempting state common law claims, PLCAA affords state legislatures autonomy in deciding how to regulate the gun industry within their borders.

Additionally, this Article addresses unresolved questions concerning constitutional limits on gun industry regulation. PLCAA explicitly strikes a balance between three constitutional principles. It safeguards the individual right to keep and bear arms by protecting the gun industry from civil litigation that would unduly curtail civilian access to firearms. It insists that the separation of powers requires that gun industry regulation should derive from legislation not common law adjudication. It affords state governments autonomy in deciding how to regulate the gun industry, recognizing that there are regional differences in attitudes about how to best reduce firearms-related violence. We counsel against interpretations of the Second Amendment’s application to gun industry regulation that would expand the right to keep and bear arms at the expense of other important constitutional principles such as the separation of powers and federalism

75 Florida Law Review 833 (2023),

By Avneet Bhullar, Jonathan Shipley, […], and Jeffry Nahmias, , et al,

Background

In January of 2019, Washington State (WA) passed Initiative 1639 making it illegal for persons <21 years-old to buy assault weapons (AWs). This study aimed to evaluate the effects of WA-1639 on firearm-related incidents involving AWs by those <21 years-old in WA, hypothesizing a decrease in incidents after WA-1639.

Methods

Retrospective (2016-2021) data on firearm violence (FV) events were gathered from the Gun Violence Archive. The rate of FV was weighted per 100,000 people. Total monthly incidents, injuries, and deaths were compared pre-law (January 2016-December 2018) vs post-law (January 2019-December 2021) implementation. Mann-Whitney U tests and Poisson’s regression were used for analysis.

Results

From 4091 FV incidents (2210 (54.02%) pre-law vs 1881 (45.98%) post-law), 50 involved AWs pre- (2.3%) and 15 (.8%) post-law. Of these, 11 were committed by subjects <21 years-old pre-law and only one occurred post-law. Total incidents of FV (z = −3.80, P < .001), AW incidents (z = −4.28, P < .001), and AW incidents involving someone <21 years-old (z = −3.01, P < .01) decreased post-law. Additionally, regression analysis demonstrated the incident rate ratio (IRR) of all FV (1.23, 95% CI [1.10-1.38], P < .001), all AW FV incidents (3.42, 95% CI [1.70-6.89], P = .001), and AW incidents by subjects <21 years-old (11.53, 95% CI [1.52-87.26], P = .02) were greater pre-law vs post-law.

Discussion

Following implementation of WA-1639, there was a significant decrease in FV incidents and those involving AWs by individuals <21 years-old. This suggests targeted firearm legislation may help curtail FV. Further studies evaluating FV after legislation implementation in other states is needed to confirm these findings.

The American SurgeonTM. 2024;0(0). doi:10.1177/00031348241244644 (Online First)

By The United Nations Office on Drugs and Crime (UNODC) and the Flemish Peace Institute

The multifaceted links between illicit drug trafficking and illicit firearms present a global challenge requiring a clear understanding and integrated responses. These multidimensional links are characterized by:

• the demand for firearms that is created by the trafficking of illicit drugs, not least as drug traffickers are heavily armed with illicitly trafficked weapons;

• the connection between firearms and drug trafficking routes, actors and modi operandi, with drug traffickers accepting or demanding firearms as payment-in-kind for illicitly trafficked drugs;

• gun violence that occurs as a direct result of the ability of drug traffickers to increase their capabilities through accessing a wide variety of illicitly trafficked firearms.

Drug trafficking fuels firearms trafficking

Global drug trafficking acts as a key driver for the use of illicit firearms as well as their illicit manufacturing, proliferation, and trafficking. The long life cycle of firearms provides opportunities for the diversion of firearms from legal possession into illegal possession. Drug criminals across the globe profit from such diversion opportunities and the affiliated firearms trafficking activities.

Firearms seizures in the context of drug trafficking occur on a global scale and are particularly prominent in Europe, Latin America and the Caribbean. Firearms trafficking is often funded by the profits generated by illicit drug trafficking, with direct exchanges of firearms for drugs taking place in certain instances.

Demand for firearms is high in a drug-related criminal context due to the instrumental and reputational purposes that a firearm fulfils for actors involved in drug trafficking activities. Access to firearms allows drug criminals to carry out or expand their activities and protect their territory and themselves against competitors and law enforcement agencies.

Similar routes, actors and modi operandi in both types of trafficking

While drug trafficking is characterized by a global reach and firearms trafficking is generally limited to a regional dimension, significant interlinkages arise between both types of trafficking through the actors, routes and modi operandi used by the traffickers. Arms trafficking methods have often been pioneered by drug traffickers.

Frequently, firearms and drugs are smuggled together, or the firearms can be used as a means of protection for drug traffickers from both competitors and/or public security forces.

Global drug trafficking routes can also be exploited for firearms trafficking as firearms can be smuggled in the reverse direction or on the same drug trafficking route and incorporate the same facilitators and/or collaborators to successfully smuggle the contraband.

Drug trafficking fuels gun violence

Despite the largely non-violent dimension of the illicit drug trade, as most illicit drugs transactions and trafficking occur without violence, the linkages between firearms and drug trafficking can trigger, facilitate and intensify violence. Access to trafficked firearms tends to increase the use of violence in drug markets across the globe, with more lethal casualties and higher levels of the use of automatic rifles being associated with the drug milieu than with other criminal contexts.

Drug-related gun violence is a global phenomenon and can occur at any point within the drug lifecycle. Significant geographical differences can be observed in gun violence related to the production and trafficking of large quantities of drugs, which reflect to a certain extent the global distribution patterns of the various types of drugs. Drug-related gun violence connected to local consumer drug markets, on the other hand, can be observed across the globe.

Gun violence related to drug trafficking can have devastating spill-over effects on local communities and, geographically, in the broader region in which drug trafficking occurs. The interlinkages between firearms and drug trafficking can fuel armed conflict and terrorism by facilitating the funding and acquisition of weapons by non-state armed groups and terrorists through drug trafficking criminal networks and activities.

Vienna: UNODC, 2024. 52p.

By Sophie L. Kjærvik, Victoria J. Blondell, Nicholas D. Thomson

Gun violence remains a persistent public health issue in the United States. Two notable risk factors for violence include childhood maltreatment and exposure to community violence. Yet, little is known about the link between childhood maltreatment and gun violence in adulthood and whether a lack of community safety (i.e., increased firearm presence and violence) may explain the association. Objective: This study aimed to investigate the relationship between childhood maltreatment (i.e., emotional abuse and neglect, physical abuse and neglect, and sexual abuse) and firearm violence while examining the potential mediating role of neighborhood concerns among adults hospitalized with violent injuries. Participants and setting: The study included 329 violently injured adults (Mage = 32.7) recruited from a Level 1 Trauma Center in Virginia. Methods: Participants completed assessments of childhood maltreatment, neighborhood concerns, and firearm violence. Results: All forms of childhood maltreatment, except for emotional neglect, were related to firearm violence. Neighborhood concerns partially mediate the relation between both emotional abuse and physical abuse and firearm violence and fully mediate the relation between both sexual abuse and physical neglect and firearm violence. The results show the critical importance of addressing both individual-level trauma and broader social determinants of health (i.e., community violence) in violence prevention efforts. Conclusion: By understanding the pathways through which childhood maltreatment manifests in community settings and contributes to firearm violence, the findings offer valuable insights for informing targeted interventions and policy initiatives aimed at reducing the prevalence of firearm-related violence and fostering safer neighborhood

Unpublished paper, 2024. 43p.

By Matt Schroeder

Since 1970, armed groups have hit dozens of civilian aircraft with man-portable air defence systems (MANPADS), killing more than 1,000 civilians. The international community has taken numerous steps to reduce illicit proliferation, but armed groups in the Middle East and North Africa (MENA) region continue to acquire and use these systems.

Persistent Perils: Illicit MANPADS in the MENA Region—a new Report from the Small Arms Survey’s Security Assessment In North Africa (SANA) project—provides an in-depth analysis of the proliferation of MANPADS in North Africa and the Middle East from 2015–23. Drawing on imagery and data collected since 2015 to identify the type, model, generation, and country of design/manufacture of illicit MANPADS in the region, the Report assesses the implications of recent proliferation patterns for regional security and international norms and agreements.  

Geneva: Small Arms Survey. 2024, 68pg

By Gary Klein

In light of the difficulty achieving consensus about gun violence prevention at the federal level in the current political climate, leadership and innovation on gun violence prevention must come at the state and local levels. State legislators, law enforcement leaders, and state attorneys general must take the lead to find the pathway that most effectively protects their residents in collaboration with concerned communities. There is substantial evidence that states with comprehensive and effective gun laws have fewer incidents of gun homicides, gun suicides, and unintentional shooting deaths. These 50 proposals for state or local action have demonstrated success where they have been enacted and are a starting point for states interested in promoting public safety by addressing preventable gun violence.  

Washington, DC: Violence Policy Center, 2022. 24p.

By The Violence Policy Center

Large capacity ammunition magazines are the common thread running through most mass shootings in the United States. Since 1980, there have been at least 106 mass shootings (three or more fatalities not including the shooter) where the shooter used large capacity ammunition magazines containing more than 10 rounds. A total of 959 people were killed in these shootings, and 1,309 were wounded. This number is likely a significant undercount of actual incidents as there is no consistent collection or reporting on this data. Even in many high-profile shootings, information on magazine capacity is neither released nor reported. The Violence Policy Center has compiled this list of incidents by analyzing news reports and follow-up investigative reports on mass shootings. Only shootings in which there is specific information that large capacity magazines were used are included.  ( This document was last updated on January 11, 2024.

Washington, DC: Violence Policy Center, 2024. 17p. 

By Michael Sierra-Arévaloa and Justin Nix 

After more than 50 years of social science research on policing in the United States, the danger of police work remains a salient feature of police officers’ occupational environment (Loftus, 2010; Marenin, 2016; Sierra-Arévalo, 2019). Scholarly attention to the danger of policing has been renewed by recent discussion of a “war on cops” that began after the 2014 police killing of Michael Brown in Ferguson, MO. Proponents of this hypothesized war posit that the contemporary political climate has resulted in widespread distrust and even disdain of police on the part of public officials, academics, and the news media; in turn, the public has become increasingly “anti-police” and emboldened to question, resist, and violently attack police officers on U.S. streets (Mac Donald, 2016). However, despite widespread concern among police administrators (Nix et al., 2018), empirical research on the most dire implication of a war on cops—violence against police—finds no significant increases in fatal or non-fatal violence against police in recent years (Maguire et al., 2017; Shjarback & Maguire, 2019). Nonetheless, the issue of violence against police remains highly salient to U.S. politics and policy, including the rise of the Blue Lives Matter movement and the growth in laws seeking enhanced penalties for killing police officers (Craven, 2017).  Despite the rich history of research on danger in police work, however, there are several long-standing limitations to this body of scholarship. First, researchers’ operationalization of “danger” tends toward the rarest, most extreme measure of danger in police work: felonious line of-duty deaths that are driven by firearm assaults (see White et al., 2019, p. 14). This focus on felonious deaths underestimates the total scope of the danger police confront by ignoring nonfatal violence against officers (c.f. Bierie, 2017; Bierie et al., 2016), including non-fatal firearm assaults that, even though they do not result in a line-of-duty death, represent cases of deadly force directed at police. Second, analyses that attend to all assaults on police officers better capture less-than-lethal violence (e.g. punches, kicks) but do not differentiate such cases from especially lethal threats like firearm assaults (Shjarback & Maguire, 2019; Tiesman et al., 2018; c.f. Bierie et al., 2016). Third, data sources that rely on voluntary reporting by police (e.g. LEOKA, NIBRS) are limited by a lack of consistent reporting by law enforcement agencies and marked lag times in the release of said data, frustrating timely, confident estimates of a pressing public safety and policy issue (Kuhns et al., 2016, p. 6; Nix et al., 2019, p. 6; Shjarback & Maguire, 2019). Because of its inattention to cases in which officers are shot but not killed, existing research tends to provide either an underestimate of gun violence directed at officers or eschew specificity in favor of an estimate of assault broadly defined. This, in combination with the data quality and timeliness issues that affect datasets commonly used to examine violence against police, prevents accurate estimates of total firearm assaults on officers that are of longstanding salience to the issue of officer safety in the United States (Cell, 2019; The President’s Commission on Law Enforcement and Administration of Justice, 1967, p. 239).  Given the decided gravity of the problem at hand, there is a clear and urgent need for researchers to bring new, more timely data to bear. This article addresses these issues with open-source data provided by the Gun Violence Archive (GVA), a non-profit organization that collects and constantly updates data on firearm assaults of police officers across the United States. Because GVA records both fatal and non-fatal firearm assaults on police, we are able to provide an estimate of firearm assaults on police officers that includes (and differentiates) fatal and non-fatal shootings.3 We use these data to provide national- and state-level estimates of fatal and non-fatal firearm assaults against police officers in the United States from 2014 to 2019. We conclude with consideration of future directions for this research as well as the promises and limitations of data like those collected by GVA in research on violence against and by police. We also provide concrete policy recommendations for improving the quality and timeliness of data on violence against police to better support police agencies, researchers, and policy makers.    

Criminology & Public Policy, Volume19, Issue3 Special Issue:CUTTING‐EDGE RESEARCH IN POLICE POLICY AND PRACTICE August 2020 Pages 1041-1066

By Jordan B. Cohen

In the 1980s, the production of guns made with polymer (industrial plastic) stoked concerns that firearms were becoming undetectable by metal detectors in places like airports and federal buildings. In response, Congress passed, and President Ronald W. Reagan signed into law, the Undetectable Firearms Act of 1988 (UFA; P.L. 100-649).

The UFA was codified as 18 U.S.C. §922(p) and prohibits owning, purchasing, importing, receiving, and selling firearms that do not include at least 3.7 ounces of stainless steel. The UFA also prohibits handguns where the barrel, slide or cylinder, or the frame or receiver do not generate an image that accurately depicts the shape of the component when under inspection by the type of x-ray machine commonly used at airports.

The UFA included a sunset clause, after which its provisions will be repealed. The UFA’s sunset has been delayed multiple times, most recently through March 22, 2024 (P.L. 118-40).

History of Undetectable Firearms Act

The impetus for the UFA stemmed from fears that polymer-framed firearms could slip past airport metal detectors. For example, the Glock was invented in the 1980s and is a polymer-framed, semi-automatic pistol. Initially designed for the Austrian military, the Glock’s frame weighs much less than traditional steel-framed firearms and the polymer allows it to better absorb recoil than other handguns.

Some observers framed the Glock as a hijacker’s special, referring to the potentiality that it could pass through airport security undetected. Additionally, in 1986 media reports claimed that the Glock, when dismantled, “is frighteningly easy to smuggle past airport security” and that “one Pentagon security expert decided to demonstrate just how easy it would be to sneak a Glock 17 aboard an airliner.” Though not mentioned in these articles, these same metal detectors and their operators were also often not recognizing pistols made exclusively out of metal.

Beyond concerns over polymer guns, some feared that individuals may attempt to board aircrafts or enter federal buildings with nondescript, gadget firearms or firearms that, when broken into component parts, do not look like traditional firearms—such as “a James Bond-like pen gun.”

Washington, DC: Congressional Research Service, 2024. 3p.

By Melissa W. Burek,  & Julia C. Bell

On June 13, 2022, Ohio enacted a permitless carry law (PCL), allowing Ohioans to carry a firearm without a concealed-carry license. The Center for Justice Research was tasked to explore the relationship between permitless carry and crime involving a firearm before and after the enactment of the PCL in the eight largest cities of Ohio. This exploratory study considers crime incidents involving a firearm, validated gunshot detection incidents, and the impact of PCL on law enforcement from June 2021 to June 2023. Major findings, study limitations, and future research recommendations are presented in the full report. In brief, we observed: • Results from a trend analysis indicated a significant decrease in crime incidents involving a firearm for Akron, Columbus, and Toledo, and across all 8 cities combined from June 2021- June 2023. • As displayed in the figure above, most cities’ crime rates decreased after the PCL was enacted. Unlike the other six cities, rates in Dayton and Cincinnati increased slightly, however. • Toledo, Parma, and Akron each experienced an average of 19% decrease in summed rates of crimes involving a firearm post-PCL. • Based on data from June 2021-June 2023, the enactment of the PCL does not appear to have any appreciable effect on law enforcement injuries or deaths by firearm in the cities of interest. • Data on gunshot detection technology for Toledo and Columbus also captured a decrease in validated crime incidents post-PCL by 23.2% and 20.6%, respectively. • Increases in crime rates in the spring-summer months appear both before and after the PCL went into effect for most cities (see Figure 1 in full report), but this observation could be due to the influence of other factors such as time of year or structural population characteristics. This slight acceleration in crimes involving firearms was also temporary

United States, Center for Justice Research. 2023, 22pg

By Rebecca F. Wilson, Sasha Mintz, Janet M. Blair, Carter J. Betz, Abby Collier, and Katherine A. Fowler

In the United States, unintentional injury is the fourth leading cause of death among infants (i.e., children aged <1 year) and is the top cause of death among children and adolescents aged 1–17 years; firearms are a leading injury method. Unsecured firearms (e.g., unlocked and loaded) are associated with risk for unintentional childhood firearm injury death. Data recorded during 2003–2021 by the National Violent Death Reporting System (NVDRS) from 49 states, the District of Columbia, and Puerto Rico were used to characterize unintentional firearm injury deaths of U.S. infants, children, and adolescents aged 0–17 years (referred to as children in this report). NVDRS identified 1,262 unintentional firearm injury deaths among children aged 0–17 years: the largest percentage (33%) of these deaths were among children aged 11–15 years, followed by 29% among those aged 0–5 years, 24% among those aged 16–17 years, and 14% among persons aged 6–10 years. Overall, 83% of unintentional firearm injury deaths occurred among boys. The majority (85%) of victims were fatally injured at a house or apartment, including 56% in their own home. Approximately one half (53%) of fatal unintentional firearm injuries to children were inflicted by others; 38% were self-inflicted. In 9% of incidents, it was unknown whether the injury was self- or other-inflicted. Approximately two thirds (67%) of shooters were playing with or showing the firearm to others when it discharged. Overall, firearms used in unintentional injury deaths were often stored loaded (74%) and unlocked (76%) and were most commonly accessed from nightstands and other sleeping areas (30%). Unintentional firearm injury deaths of children are preventable. Secured firearm storage practices (e.g., storing firearms locked, unloaded, and separate from ammunition) have been identified as protective factors against child firearm injuries and deaths, underscoring the importance of policymakers, health care professionals (e.g., pediatricians), and others partnering with parents, caregivers, and firearm owners to promote secure firearm storage.  

United States, Morbidity and Mortality Weekly Report. 2023, 8pg