By Pamela Ruiz

Government officials in northern Central America (Guatemala, El Salvador, and Honduras) claim the Mara Salvatrucha (MS-13) and Barrio 18 are primarily responsible for violence in their countries. These gangs have been identified to exert violence, extortion rackets, and confront security forces that enter gang-controlled communities (Seelke, 2014; Natarajan et al, 2015; International Crisis Group, 2017; Servicio Social Pasionista (SSPAS), 2017; Insight Crime and Asociación para una Sociedad mas Justa (ASJ) [Association for a more Just Society] 2016, Arce, 2015). But exactly how do gangs contribute to violence and extortion rackets in these countries? What are the differences, if any, on how the gangs commit these crimes in Guatemala, Honduras, and El Salvador? This working paper discusses the complex violence dynamics in northern Central America and argues that a chronic deficiency in data, weak rule of law, and impunity exacerbate insecurity in these countries. The Mara Salvatrucha (MS-13) and Barrio 18 originated in Los Angeles, California and are now present throughout the United States, northern Central America, Spain, and Italy (Franco, 2008; Valdez, 2009; Seelke, 2016; Valencia, 2016; Finklea, 2018; Dudley & Avalos, 2018). Barrio 18 was formed in the 1960s by mixed-race Mexican, and MS-13 was formed in latter 1980s by Salvadorans who fled the civil war (Franco, 2008; Valdez, 2009; Seelke, 2016; Wolf, 2012). Some scholars argue gang culture was exported when individuals with criminal records were deported to their country of origin, while other scholars argue voluntary migration contributed to gangs’ presence in northern Central America (Arana, 2005; Franco, 2008; Seelke, 2016; Cruz, 2010). It is imperative to clarify that a criminal removal from the United States is not synonymous,nor does it imply a perfect correlation with a gang member being removed. Nonetheless, these gangs have become major security concerns in northern Central America. This study examined the concentration of crimes often attributed exclusively to gangs (homicides, extortion, and confrontations) using administrative data from the Salvadoran National Civilian Police, Honduran Prosecutor’s Office, and Guatemalan National Civilian Police. Interviews with subject matter experts supplemented the quantitative analysis to gain further understanding of violence dynamics per country. This paper follows with a literature review on homicides, extortion, and confrontations trends in northern Central America, a methodology section, results, and a discussion.  

Kimberly Green Latin American and Caribbean Center , Florida International University,  January 2022 31p.

By Megan Kang

This study draws on 95 interviews and observations with gang-affiliated individuals in Chicago to examine how gang structures shape disengagement and desistance from crime. During the last two decades, the city's gangs have experienced a decline in group closure, or their capacity to regulate membership and member behavior, and a blurring of boundaries between those active in a gang from all others. In the past, Chicago's gangs maintained closure and bright boundaries that made gang affiliations, norms, and territories clearly defined. Leaving these gangs required costly exit rituals that signaled an unambiguous departure while facilitating desistance. Today, with weaker gang structures and blurry boundaries, leaving a gang is no longer a distinct event. The ease of gang disengagement, however, makes desistance harder as inactive members struggle to knife off past ties and access turning points. In this uncertain landscape, desistance tactics can backfire, sending “blurred signals”—behaviors intended to create distance from former affiliates and rivals but appear as wavering commitment to supporters—that trap individuals in a liminal space between social worlds. Contrary to leading desistance theories that emphasize individual readiness, opportunity, and prosocial bonds, this study underscores how group structures critically shape pathways out of crime.

CriminologyVolume 63, Issue 4 Nov 2025 Pages687-883

By Natasha P. Sobers, Joeleita Agard, Katrina Norville, Anne-Séverine Fabre, Nicolas Florquin, Callixtus Joseph, Madeleine Joseph, Maria Garcia-Joseph, Reginald King, Patrick Jason Toppin, Hugh Wong, Simon G. Anderson

In the Caribbean, gun violence has reached crisis levels and regional heads of government have called for a public health approach to inform prevention and control. Feedback loops resulting from work carried out under the ‘Pathway to Policy’ project showed that firearm-related crimes increased the chances of household poverty, national economic costs, deaths and disability and promoted a culture of violence, all of which reinforced gun violence. Interventions to reduce illicit access and use of firearms, social development programs, and investment in educational systems may balance rates of gun violence.

Firearm-related violence in the Caribbean is a complex systemic issue: how do we move towards a solution?—an article co-written with our project partners from the Caribbean Community Implementation Agency for Crime and Security, the Caribbean Public Health Agency, and the George Alleyne Chronic Disease Center at the University of the West Indies—discusses the work carried out by the Advisory Committee of Regional Experts, a multisectoral group convened to develop a ‘pathway to policy’ that informs a regional approach to tackling firearm violence. Using a systems mapping technique to inform our understanding of firearm-related crimes and injuries based on the expertise of stakeholders and based on analysis of publicly available data from thirteen countries within the Caribbean Community, this article calls for greater attention to the equilibrium between crime response strategies and prevention approaches.

By Rachel Locke, Kelsey Paul Shantz, Andrei Serbin Pont, Jai-Ayla Sutherland
This open access book represents a multiyear exploration into identity-based mass violence (IBMV) within urban contexts. It explores the complexities of structural and acute violence in cities, drawing on local solutions rooted in the fields of urban violence prevention, atrocity prevention, and peacebuilding. The authors present a multidimensional approach that addresses sexual and gender-based violence, racial and ethnic violence, gang or group-based violence, state-perpetrated violence, political violence, violence against migrants, and others. The volume investigates the outsized influence of power in shaping how violence is understood and how prevention outcomes are evaluated. The chapters span scholarship, practical guidance, and lived experience of enduring and bearing witness to IBMV. This volume speaks directly to reform-minded partners and allies in policy and practice, as well as to funders and supporters. It provides a practical foundation for collaborative, prevention-focused action and policy opportunities.
Cham: Springer Nature, 2025. 

By Stergios Skaperdas and Samarth Vaidya

We synthesize research on conflict as a fundamental economic phenomenon, arguing that the implications of the ”dark side of self-interest” have received insufficient attention in economics. We define conflict as interactions where parties choose costly inputs that are adversarially combined against one another — distinct from the collaborative input combinations typical in economic models. We make four key contributions: First, we demonstrate that conflict induces economically significant costs comparable to or exceeding traditional deadweight losses. Second, we explain how these costs vary across contexts based on property rights protection, state capacity, and cultural norms. Third, we show how incorporating conflict into economic models leads to substantially different predictions than traditional models — including inverse relationships between compensation and productivity; distortions in comparative advantage; prices determined by power rather than solely by preferences endowments, and technology. Fourth, attributes of modern states such as centralization in the presence of law, checks and balances, other forms of distributed power, and the bureaucratic form of organization can partly be thought of as restraining conflict and appropriation, with implications for governance and economic development. Overall, in the presence of conflict and appropriation, power considerations cannot be separated from economics and first-best models are not empirically plausible.

 CESifo Working Paper No. 12135, 2025

By Katalin Parti  · Faika Tahir  · Pamela B. Teaster 

Cyber victimization targeting vulnerable populations, particularly older adults, has become increasingly prevalent in the digital age. Grounded in the Bioecological Systems Framework (Bronfenbrenner in The ecology of human development: Experiments by nature and design, Harvard University Press, Cambridge, 1979), this research explores the factors contributing to victimization, including the ease of exploitation, the situational factors setting up victims for scams, their vulnerabilities, the dynamics within their environments, and the challenges victims face in recognizing scams. Using semi-structured interviews, we asked scam victims (n=19) aged 60 years and above about their personal and structural circumstances as well as their individual assessment of the impact of their being victimized. Despite high levels of education and computer literacy among our sample, their victimization occurred far too frequently, which prompts a call for the revision of existing approaches toward helping older adults overcome scam victimization.  

  Security Journal (2025) 38:49

By Yen Zhi Yi
SYNOPSIS
In recent months, heightened media scrutiny has drawn attention to the proliferation of scam centres along Myanmar’s border towns and the subsequent crackdowns on them. Concurrently, Singapore has also witnessed a significant increase in scam-related incidents, with the government urging vigilance and taking precautionary measures to safeguard its citizens. Against this backdrop, it is imperative for ASEAN countries to work collaboratively to tackle this growing cross-border scourge. Doing so calls for stepped-up action at home to enhance awareness and enforcement collaboration abroad among regional partners to check this transnational security challenge.
 S. Rajaratnam School of International Studies, NTU Singapore, 2025. 6p.

Socio-economic status, demographic background and criminal history.

By Lisa Westfelt

This study focuses on aspects that have not yet been examined in Swedish research: the socio-economic status and demographic background of victims and perpetrators at the time homicides are committed, as well as the victims and perpetrators’ criminal histories.

English summary of Brå report 2025:5 Stockholm: The Swedish National Council for Crime Prevention (Brå), 2025. 14p.

Scope, trends and characteristics.

By Klara Hradilova-Selin

This study is the fourth in a series of Brå’s research reports on homicide in Sweden, based on material from the criminal justice system. The analyses build on audited data from police preliminary investigations and, in cases that have been cleared, judgments obtained from both district courts and appeal courts. The aim has been to outline trends in and characteristics of homicide cases since 1990, with a particular focus on the most recent period for which data have been collected, 2018–2021. Some analyses also include data from Brå’s statistics on confirmed cases of lethal violence for 2022 and 2023. 

Report 2024:6