By: Ghaleb Krame, Amanda Davies, Magdalena García & Noé Cuervo Vázquez 

This paper explores the power struggle between the Chapitos and Mayiza factions of the Sinaloa Cartel and its implications for U.S. and Mexican law enforcement. Employing scenario analysis, payoff matrices, and Nash equilibria, the study evaluates potential outcomes of this conflict and their impact on cartel power dynamics. While the Cartel de Jalisco Nueva Generación (CJNG) is poised to exploit instability and expand its influence over fentanyl trafficking and key territories, for the United States of America (U.S.A.), this internal fragmentation complicates efforts to control the opioid crisis. In Mexico, Omar García Harfuch faces the challenge of stabilizing cartel-affected regions and countering CJNG’s growth. A Mayiza victory is seen as the most favorable outcome, reducing violence and curbing CJNG’s expansion. Coordinated intelligence-sharing and strategic responses are essential for regional stability.

Security Journal (2025) 38:57

By  Maia Sacchetto

  Premising that there are more flexible forms of Nigerian crime, such as small and scattered groups not in connection with each other that operate mainly as drug dealers of small districts in the suburbs of northern Italy, this research focuses on the most structured forms of criminal organizations, those directly descended from the cultist circles born in Nigeria in the '60s and resulted in real mafia associations already in the motherland and then extended throughout Europe. The choice of this theme and this very specific category of Nigerian organized crime is based on the belief that well-structured and organized groups are more dangerous and difficult to counter for three reasons basically: the first is that it is rarer for associates to decide to betray the group to favor information to the police or intelligence. This is because of the closer ties between group members (and in this case this element takes on an even more incisive relevance since the subject is an ethnically based organized mafia in which ethniccultural ties provide the basis for interaction between associates), but also and especially because of the coercive and intimidating forces between members of mafia associations towards the ones prone to cheat on the group; the second is developed from the assumption that a more sophisticated internal structure of the association also corresponds to more elaborate modus operandi and operational strategies that allow prosecutors of illicit activities to camouflage or hide the proceeds of illicit activities; the third reason is closely related to the first and second and consists in the fact that mafia associations that are highly organized and capable of taking advantage of substantial material resources are also more likely to act in a capillary, widespread, large-scale and sprawling manner to the point of infiltrating the legal economy. As will be described in the first chapter of this research, the Black Mafia originated in Nigeria as a protest movement against constituted power and composed mainly of members of Nigeria's leading universities. Over time it expanded, heightened the violence of its manifestations, and began to move out of the realm of mere ideological rebellion by directly affecting public institutions. In a short time, the cults turned into full-fledged clans and began to act in Nigeria as the Italian mafia acts in Italy, intimidating political and economic opponents who would stand between their illicit activities and the achievement of their goals: the accumulation of wealth and power. From the outset, these associations are thus characterized by a high degree of pervasiveness in the political, social and economic structure of their country, as well as multifacetedness by dealing with a massive and varied range of illicit activities, including support in the arms trafficking of terrorist groups such as Boko Haram. With the conclusion of the Cold War, the tearing down of the Berlin Wall and restrictions in the mobility of people, and the emergence of the new globalized and interconnected world, the Black Mafia, which had already shown a remarkable predisposition to expand and sprawl, crossed its national borders. Following a progressive evolution, it has developed into a form of transnational organized crime which according to the UNODC represents the main threat to the security and political and economic stability of states (UNODC, 2006)1 . Undergoing continuous metamorphosis and adapting immediately to the changing needs of the market and globalization, it has then become increasingly sophisticated and pervasive (UNODC, 2018)2 . Out of sheer opportunism, it started allying itself with other forms of crime in order to strengthen its organization and to extend to more and more operators: drug traffickers, arms traffickers, human traffickers, up to encompassing operators that act daily in a regime of legality, all in order to increase their revenues 

By Jemar R. Bather, Diana Silver, Brendan P. Gill, Adrian Harris, Jin Yung Bae, Nina S. Parikh & Melody S. Goodman 

Background

Social vulnerability may play a role in social media-involved crime, but few studies have investigated this issue. We investigated associations between social vulnerability and social media-involved violent crimes.

Methods

We analyzed 22,801 violent crimes occurring between 2018 and 2023 in Prince George’s County, Maryland. Social media involvement was obtained from crime reports at the Prince George’s County Police Department. Social media application types included social networking, advertising/selling, ridesharing, dating, image/video hosting, mobile payment, instant messaging/Voice over Internet Protocol, and other. We used the Centers for Disease Control and Prevention’s Social Vulnerability Index to assess socioeconomic status (SES), household characteristics, racial and ethnic minority status, housing type and transportation, and overall vulnerability. Modified Poisson models estimated adjusted prevalence ratios (aPRs) among the overall sample and stratified by crime type (assault and homicide, robbery, and sexual offense). Covariates included year and crime type.

Results

Relative to high tertile areas, we observed a higher prevalence of social media-involved violent crimes in areas with low SES vulnerability (aPR: 1.82, 95% CI: 1.37-2.43), low housing type and transportation vulnerability (aPR: 1.53, 95% CI: 1.17-2.02), and low overall vulnerability (aPR: 1.63, 95% CI: 1.23-2.17). Low SES vulnerability areas were significantly associated with higher prevalences of social media-involved assaults and homicides (aPR: 1.64, 95% CI: 1.02-2.62), robberies (aPR: 2.00, 95% CI: 1.28-3.12), and sexual offenses (aPR: 2.07, 95% CI: 1.02-4.19) compared to high SES vulnerability areas. Low housing type and transportation vulnerability (vs. high) was significantly associated with a higher prevalence of social media-involved robberies (aPR: 1.54, 95% CI:1.01-2.37). Modified Poisson models also indicated that low overall vulnerability areas had higher prevalences of social media-involved robberies (aPR: 1.71, 95% CI: 1.10-2.67) and sexual offenses (aPR: 2.14, 95% CI: 1.05-4.39) than high overall vulnerability areas.

Conclusions

We quantified the prevalence of social media-involved violent crimes across social vulnerability levels. These insights underscore the need for collecting incident-based social media involvement in crime reports among law enforcement agencies across the United States and internationally. Comprehensive data collection at the national and international levels provides the capacity to elucidate the relationships between neighborhoods, social media, and population health.

Inj. Epidemiol. 11, 54 (2024

By Eric Hershberg, Edward Maguire, Steven Dudley

In October 2012, the U.S. government designated MS-13 as a transnational criminal organization (TCO), raising serious questions about the breadth of the gang’s criminal capacity. Some analysts have pointed to a steady growth and professionalization of this criminal organization, but insufficient data has hindered the formulation and implementation of policies aimed at countering this trend. Our multiyear project proposed to fill gaps in the extant literature by conducting qualitative and quantitative research designed to assess MS-13’s transnational criminal capacity. More specifically, our objectives were to: 1) conduct extensive interviews with local stakeholders, gang experts, and MS-13 members in three major metropolitan areas, including two in the U.S. and one in El Salvador; 2) analyze qualitative and quantitative data gathered through tested survey and interview instruments and from official sources, with particular attention to the following factors: type of criminal activities, organizational structure, inter- and intra-gang relationships, level of community penetration, accumulation of social capital, development and migration patterns, and recruitment strategies; 3) utilize social network analysis techniques to quantify the social reach of gang member respondents; and 4) disseminate project findings to relevant constituencies in law enforcement, policymaking circles, academe, and the general public. The purpose of our research was to provide policymakers and law enforcement officials with a comprehensive understanding of MS-13 by measuring the extent and range of the organization’s criminal activity and mapping its social networks. Our goal was to generate empirical data that could serve as a foundation upon which to shape new policies and practices. Specifically, our hope was that the data would provide insights regarding the optimal allocation of law enforcement resources, the likely movements of MS-13, and the design of intervention and suppression strategies. 

Washington DC: U..S. Department of Justice,  2019. 11p.

By : M. Richardson, M. Newman, G. Berry, C. Stansfield, A. Coombe & J. Hodgkinson

• Objective

  To identify and map evaluations of interventions on gang violence using innovative systematic review methods to inform future research needs.

  Methods

  A previous iteration of this map (Hodgkinson et al., (2009). “Reducing gang-related crime: A systematic review of ‘comprehensive’ interventions.”) was updated in 2021/22 with inclusion of evaluations since the original searches in 2006. Innovative automatic searching and screening was used concurrently with a ‘conventional’ strategy that utilised 58 databases and other online resources. Data were presented in an online interactive evidence gap map.

  Results

  Two hundred and forty-eight evaluations were described, including 114 controlled studies, characterised as comprehensive interventions, encompassing more than one distinct type of intervention.

  Conclusion

  This suggests a substantial body of previously unidentified robust evidence on interventions that could be synthesised to inform policy and practice decision-making. Further research is needed to investigate the extent to which using automated methodologies can improve the efficiency and quality of systematic reviews.

•  J Exp Criminol 20, 1125–1146 (2024).

By  Lucia Bird | Saša Đorđević | Fatjona Mejdini 

Western Balkans criminal groups, comprising both Albanian- and Slavic-speaking networks, have become dominant players in the global cocaine trade. While their influence in Europe and Latin America has been well documented, their growing role in West Africa has largely flown under the radar. Since 2019, these groups have expanded their operations in West Africa, using the region as a critical logistical, storage and redistribution hub for cocaine shipments en route to European consumption markets and beyond. This expansion has been shaped by their effective leverage of geography, governance weaknesses and infrastructure, both hard and digital. Initially limited to occasional trafficking links, the Western Balkan groups have deepened their presence across West Africa’s coastal states, including Senegal, Sierra Leone, Gambia, Guinea-Bissau and Cabo Verde. This growing focus on West Africa was driven by rising demand for cocaine in Europe, increased enforcement on direct routes to Europe and strengthened partnerships with Latin American cartels, especially Brazil’s Primeiro Comando da Capital (PCC). Western Balkan groups now operate through multiple trafficking methods in West Africa, exploiting fully containerized routes, non-containerized shipments (i.e. shipments not stored in containers, but hidden elsewhere on vessels) by other types of vessels, trans-shipments at sea and in-region containerization to conceal the cocaine’s origin. They have embedded brokers in West African countries who organize logistics, establish infrastructure and liaise with local actors. In Sierra Leone, for example, they have reportedly established companies to launder funds and warehouses to store and repackage cocaine, coordinating onward shipments through formal seaports using legitimate cargo. These brokers are key to operations and are often shared among the different groups. The groups’ structures are flexible and typically consist of small, trusted units supported by collaborators. Groups leverage local vulnerabilities to build relationships with corrupt law enforcement, port operators and security services. Particularly significant Western Balkan groups in West Africa include the Montenegrin Kavač clan and its rival, the Škaljari clan. The Kavač clan’s operations have been linked to ports in Brazil and Sierra Leone, with brokers overseeing logistics from Freetown. As we explain in this report, in some cases a single broker will work with more than one group from the Western Balkans. In parallel, Albanian-speaking groups, which have a strong presence in Spain and Brazil, have been operating through countries including Senegal and Gambia, sometimes collaborating with the Italian ‘Ndrangheta or the PCC. The example of an Albanian national who, according to Brazilian law enforcement investigations, is a major European supplier coordinating shipments through West Africa from Brazil, exemplifies the growing use of multi-tonne cocaine operations routed through the Gulf of Guinea. Looking ahead, Western Balkan groups are likely to further entrench themselves in West Africa, gradually relying less on their alliances with the ‘Ndrangheta, the PCC and other Western Balkan groups and instead investing directly in infrastructure and protection mechanisms. As in Latin America, their growing presence is likely to be accompanied by deeper corruption, potential violence and fragmentation into more autonomous cells. To address the growing role of Western Balkan criminal groups in West Africa, a coordinated response should focus on three key pillars. First, strategic cross-continental partnerships should be built with law enforcement, port authorities and international actors, underpinned by a political-economy analysis, to strengthen cooperation and to identify aligned priorities. Second, an enhanced data picture, drawing on a wider range of formal and informal sources, is needed to map trafficking routes and financial flows more effectively and to empower regional and international actors to tailor their risk assessments of specific routes, to profile criminal actors and to develop viable strategies for detection and disruption. Third, smart targeting strategies that prioritize brokers should be adopted, supported by parallel financial and criminal investigations. 

Geneva:  Global Initiative Against Transnational Organized Crime   2025. 61p.

By C. Proffit

Twenty-five years ago, Krivo and Peterson wrote a seminal piece on the context of disadvantage and its threshold effects. In The Structural Context of Homicide: Accounting for Racial Differences in the Process, they emphasize that extreme contexts of disadvantage may diminish the significance of certain structural conditions that contribute to higher crime rates, particularly in relation to homicide. However, remarkably few studies consider the threshold effects of disadvantage when studying homicide. Although their research primarily focuses on race groups and the varying degree of disadvantage as a crime-generating condition, the unequal distribution of disadvantage in communities may have unique effects on certain forms of violence, particularly gang homicide. This study will (1) explore how community predictors of gang homicide differ across contexts by comparing neighborhoods with extreme levels of disadvantage to those with low-moderate levels of disadvantage and (2) examine differences in this context of disadvantage between gang-related and nongang-related homicide to assess if differences emerge between these categorizations of lethal violence. Findings reaffirmed Krivo and Peterson’s conclusion. Disadvantage was associated with increases in gang homicide only in low to moderately disadvantaged areas while effects diminished in extremely disadvantaged communities.

  American Journal of Criminal Justice , July 2025

By Ana Muñiz

Through an analysis of interviews with Southern California attorneys, supplemented by archival materials, this article contributes to the literature on gangs, critical criminology, and Gothic tropes by examining how the ambiguous nature of gang profiling allows state actors to target racialized others in various legal and administrative venues with little evidence and few procedural protections. I conceptualize gang phantasmagoria as the constant, amorphous, unpredictable, and haunting threat of racialized gang allegations and argue that the dynamic shapes the work of legal practitioners and constitutes a state mechanism of racial terror. Specifically, first I argue that government officials deploy the specter of gangs to both portray asylum seekers as monstrous threats and justify restrictions in asylum eligibility. I then illustrate how the potential for gang phantasmagoria to upend asylum applications and trigger the deportation of their clients elicits constant low-grade anxiety for attorneys. Consequently, attorneys are forced to adopt more cautious approaches to legal work in a way that indirectly facilitates the social control of young Latinx immigrants.

Critical Criminology, olume 30, pages 159–175, (2022

By The International Crisis Group

  Principal Findings : What’s new? In President Nayib Bukele’s first year in office, El Salvador has seen a sharp drop in what long were sky-high murder rates. While the public celebrates his well-known “iron fist” policies, the reasons for success might lie in quiet, informal understandings between gangs and the government. Why does it matter? It is a major feat to reduce killings by the three main gangs in one of the world’s most violent countries. But the precise causes of the decline are complex and often unclear. Recent outbreaks of gang violence and political mudslinging underline the fragility and reversibility of this achievement. What should be done? Sustaining violence reduction is key. The government should prioritise community-focused development, rehabilitation of jailed gang members and more sophisticated policing efforts, including internal checks on security forces. Should gangs keep violence down and cooperate with authorities during the pandemic, Bukele should consider opening channels for local dialogue with them.   

  After decades of harrowing gang crime, homicides have plunged in El Salvador on the watch of the new president, Nayib Bukele. Faced with the growth of the MS-13 and 18th Street gangs, previous governments resorted to “iron fist” policies to crush them, only to find these fuelled a backlash. Since his 2019 election, President Bukele, a self-styled outsider, has won huge public support by presiding over a 60 per cent fall in murders. Yet prospects that this achievement will endure are in doubt. The collapsing homicide rate may stem not only from the government’s public security policies, but also from the gangs’ own decision to curb bloodshed, possibly due to a fragile non-aggression deal with authorities. In addition, Bukele’s confrontational style, which has been exacerbated during the COVID-19 pandemic, risks entangling his security reforms in political battles. Broadly backed efforts to support affected communities, assist members wishing to leave gangs and encourage local peacebuilding are more likely to end definitively El Salvador’s cycle of violence. The Bukele administration argues that the plummeting murder rate – with daily killings now standing at their lowest rate since the end of the country’s civil war (1980- 1992) – represents the crowning achievement of a new security strategy. In theory, the government’s Territorial Control Plan couples robust law enforcement with violence prevention schemes. It has reinforced joint police and military patrols in 22 municipalities suffering high rates of crime, while toughening confinement measures in jails in a bid to sever communications between inmates and the outside world. At the same time, the government’s goal of building dozens of “cubes” – glass-walled recreational and education centres – represents the flagship effort to brighten the lives of young people growing up under gang dominion and prevent recruitment into their ranks. The precise reasons for the nationwide drop in homicides are hard to pin down. Statistical studies show that the Territorial Control Plan is most likely not the sole cause; specific local falls in murder rates do not correspond precisely to those areas where the plan has been implemented. Instead, in large part, gangs appear to have themselves decided to scale back their use of lethal violence. Unassailable control over communities, declining gang rivalry and increasingly autonomous gang leadership outside jails may explain this decision more than the Territorial Control Plan. Yet other government policies might have played a role: numerous analysts and local activists ascribe the gangs’ move to an informal understanding between them and the authorities, who have allegedly ordered security forces to dial back their clashes with these groups. A sudden killing spree attributed to MS-13 in April illustrated just how precarious the gangs’ commitment to reducing violence can be. Bukele’s reaction to the attacks, which left over 80 dead in a five-day span, reaffirmed his inclination to adopt punitive measures to force gangs into submission. Images shared around the world from inside El Salvador’s high-security jails revealed inmates huddled together or forced into shared cells without any access to daylight. Although murder rates have since fallen again, the risk remains that gangs, now short of extortion income due to lockdown measures and indignant at the government’s crackdown, will once again resort to extreme violence.  

  Crisis Group Latin America Report N°81, 8 July 2020  

Brussels: International Crisis Group, 2020. 46p.

By Jan Slobodník

This study examines the militarised approach of the Mexican government in its struggle against organised crime between 2001 and 2016, focusing on the deployment of the armed forces and the implementation of the so-called kingpin strategy. It argues that the removal of cartel leaders, rather than weakening criminal networks, produced fragmentation, diversification, and militarisation within Mexico’s underworld—a process defined here as zetafication. The thesis uses the rise and evolution of Los Zetas as a case study to analyse how a criminal organisation born from army deserters introduced military tactics, hierarchical discipline, and extreme violence into organised crime, transforming the conflict’s character and the state’s response. Drawing on government reports, interviews with Mexican military officers and civilians, and contemporary scholarship, the study situates this phenomenon within Mexico’s political, legal, and socio-economic context, including the influence of U.S. security policy. It concludes that the use of the military as a policing tool produces short-term tactical gains but undermines long-term state stability, erodes public trust, and perpetuates cycles of violence.

By Mary Holper

Prolonged mandatory immigration detention has become the norm, not the exception. We have arrived at this moment because immigration detention is supposedly exceptional, subject to different constitutional norms than other civil detention. When the Supreme Court first examined a facial due process challenge to mandatory immigration detention in its 2003 decision in Demore v. Kim, immigration detention exceptionalism caused the Court to uphold mandatory detention. Absent from the Court's analysis was an entire body of due process jurisprudence, most of which developed in the 1970s, which questioned the government's purposes behind civil detention and required significant procedural protections in order for the government to deprive a person of liberty. In the wake of Demore, courts considering as-applied challenges to prolonged mandatory detention formulated multi-factor tests as a method of interpreting the statute to avoid unconstitutional detention. These tests provided an important counterweight to immigration detention exceptionalism and predictability for litigants, but most of the factors are irrelevant to a federal district court in deciding whether prolonged detention without a bond hearing violates a detainee's due process rights. Courts have been taking out the scales to engage in due process balancing, but putting the wrong weights on the scales.

Courts are beginning to discard these multi-factor tests and instead applying the Supreme Court's 1976 Mathews v. Eldridge procedural due process test to decide whether prolonged mandatory immigration detention is unconstitutional. The Mathews balancing test, which considers the private interests at stake, the risk of erroneous deprivation, and the government's interests, has been welcomed in immigration law because it encourages courts to first focus on an individual noncitizen's liberty interest. Mathews thus counteracts immigration detention exceptionalism, which focuses exclusively on the government's interest and finds that removable detainees have no liberty interest whatsoever. The Second Circuit Court of Appeals is the first circuit court to shift its test, transitioning to Mathews balancing in 2024 to decide whether mandatory detention was unreasonably prolonged. As a cautionary note, an attempt at transitioning the balancing test led the Eighth Circuit Court of Appeals, in 2024, to reject all forms of balancing, embrace immigration detention exceptionalism, and hold that any length of mandatory detention is acceptable during removal proceedings. This Article argues that courts can make prolonged mandatory immigration detention exceptional by continuing the work of the Second Circuit in applying the Mathews procedural due process balancing test instead of the existing multi-factor tests.

 Boston College Law School Legal Studies Research Paper No. 662

By Amnesty International
This report presents Amnesty International’s findings from a research trip to southern Florida in September 2025, to document the human rights impacts of federal and state migration and asylum policies on mass detention and deportation, access to due process, and detention conditions since President Trump took office on 20 January 2025. In particular, it focuses on detention conditions at the Krome North Service Processing Center (Krome) and the Everglades Detention Facility, also known as “Alligator Alcatraz”.

By Giulia Berlusconi

This paper investigates the impact of the targeting of key players by law enforcement on the structure, communication strategies, and activities of a drug trafficking network. Data are extracted from judicial court documents. The unique nature of the investigation – which saw a key player being arrested mid-investigation but police monitoring continuing for another year – allows to compare the network before and after targeting. This paper combines a quantitative element where network statistics and exponential random graph models are used to describe and explain structural changes over time, and a qualitative element where the content of wiretapped conversations is analysed. After law enforcement targeting, network members favoured security over efficiency, although criminal collaboration continued after the arrest of the key player. This paper contributes to the growing literature on the efficiency-security trade-off in criminal networks, and discusses policy implications for repressive policies in illegal drug markets.

Global Crime, Volume 23, 2022 - Issue 1

By Matthew Edwards,Jack Mark Whittaker, Cassandra Cross & Mark Button

The internet has revolutionised retail sales, with online shopping a common practice globally. While convenient, offenders have also embraced the opportunity to target potential victims and their shopping carts. Online shopping fraud occurs when offenders represent themselves as legitimate online sellers to gain sales from unsuspecting victims, both by impersonating genuine retailers and creating fictional retailers with non-existent products. The current article explores the victimisation and near misses of consumers to online shopping fraud. Based on survey responses of 1011 Australians, the article examines the online shopping activities of individuals as well as any victimisation or near miss experiences. The results indicate a high level of victimisation and near misses across this sample. It further examines a range of impacts experienced by these consumers and considers the implications of these results for the retail sector and prevention practices into the future.

 Global Crime, 26(1), 69–89.

By Fritz Brugger, Joschka J. Proksik & Felicitas Fischer

Most research on illicit financial flows (IFFs) has focused on illicit outflows from low-income countries and the role of non-state actors in generating IFFs. Less attention has been paid to processes through which IFFs enter formal value chains – in effect being legalised before leaving the country – or the crucial role of state institutions as gatekeepers. We develop a novel explanatory approach to account for the enabling role of state institutions in the legalisation of IFFs. Building on political settlement theory, we explain the performance of institutions in regulating IFFs as a function to maintain political power. Taking the case of Bolivia, we examine how legalising illicit value flows works in practice and analyse the motives and underlying conditions that lead state institutions to permit the formal export of gold shipments that have been illicitly sourced or transferred. We find that the legalisation of IFFs accommodates the interests of powerful cooperatives dominating the gold-mining sector, which are critical to maintaining the political settlement on which the incumbent government’s power is based. By maintaining a status quo of non-enforcement, legal ambiguity, and informality, gold-mining cooperatives reap higher benefits from resource extraction at the expense of domestic revenue mobilisation.

New Political Economy, Volume 29, 2024 - Issue 4

By Andrew P. Bontemps, Elizabeth S. Hawes, Bailey E. Pridgen, William P. Wagner, Dominique Black, Karen L. Cropsey

Background:Cannabis use has increased in the United States as legalization has spread. While Δ-9 THC remains the most-used federally illegal substance, use of other psychoactive hemp-derived products (Δ-8 THC, Δ-10 THC, HHC, THC-O) has grown. The current study investigated patterns of cannabis use and perceptions of harm and benefit of cannabis across states with differing cannabis laws.

Method

Participants (N=639) were adults endorsing past-90-day cannabis use who lived in one of 15 states selected based on cannabis laws (recreational use, medical use, illegal). Participants completed self-report questionnaires endorsing types of cannabis used, methods of consuming and acquiring cannabis, and ranking of potential harm and benefit of consumption methods.

Results

The majority (N=573; 89.7% of participants) endorsed past-30-day use of Δ-9 THC, regardless of legal status. There was significantly greater use of alternate cannabis forms in states where Δ-9 THC remains illegal (past-90-day: χ2(2)=16.78, p<.001; past-30-day: χ2(2)=9.50, p=.009). Individuals from states with legal recreational cannabis most frequently purchased cannabis legally (52.0%), but high levels of non-legal purchase existed regardless of legal status (47.5%). Participants reported primarily consuming Δ-9 THC through smoking (86.1%), CBD through ingestion (50.5%), and alternative cannabis types through vaping (43.8-57.7%). Average harm rankings were lower for smoking if it was the primary method of consumption.

Conclusions

Individuals purchased and consumed cannabis regardless of legal status and legal status was not significantly associated with harm or benefit rating, controlling for demographic and use data. Individuals appear more likely to purchase through legal means, if available.

Drug and Alcohol Dependence Reports

Available online 14 March 2026, 100431

Bt Hope M. Smiley-McDonald,  Esther O. Chung , Lynn D. Wenger, Danielle Good , Gillian Leichtling c, Barrot H. Lambdin , Alex H. Kral 

Background

In 2020, the U.S. state of Oregon passed Measure 110 (M110), which aimed to address substance use disorder as a public health issue and reduce disparities in the criminal legal system by decriminalizing personal drug possession and increasing services. The impact of partial drug decriminalization on individuals under community supervision—whose release conditions often prohibit drug use and who M110 excluded—is understudied.

Methods

We used targeted sampling to recruit and survey people who use drugs (PWUD; N=468) in eight Oregon counties in 2023. We compared PWUD under community supervision to those who were not to assess opioid-related overdose, naloxone access, and law enforcement engagement.

Results

Compared to PWUD who were not under community supervision, those under supervision had higher prevalence of past year opioid-related overdose. There were no differences by naloxone access. Eighty-two percent (82%) of PWUD on community supervision were stopped by law enforcement in the past year. PWUD on community supervision were more likely than those not on community supervision to report in the past year being searched by law enforcement at least once (adjusted prevalence differences [APD]=0.33; 95% CI: 0.23, 0.43), spent time in jail at least once (APD=0.33; 95% CI: 0.23, 0.43), and to have concerns about getting into trouble if they called 911 for a drug-related health problem (APD=0.12; 95% CI: 0.00, 0.18).

Conclusion

Under M110, Oregon PWUD experienced more police engagement and overdoses. Findings have implications for less police presence at overdose scenes, greater access to naloxone and support services, and protections under future decriminalization laws.

Drug and Alcohol Dependence Reports

Available online 15 March 2026, 100430

In Press, Journal Pre-proof

By Matthew F. Garnett, Jodi A. Cisewski, Farida B. Ahmad

Objective:

This report identifies the specific drugs most frequently involved in drug overdose deaths in the United States from 2017 through 2023.

Methods:

Data from the 2017–2023 National Vital Statistics System mortality files were linked to literal text data from death certificates. Drug overdose deaths were identified using the International Classification of Diseases, 10th Revision underlying cause-of-death codes X40–X44, X60–X64, X85, and Y10–Y14. Specific drugs were identified by searching three literal text fields of the death certificate: the causes of death from Part I, significant conditions contributing to death from Part II, and the description of how the injury occurred. Contextual information was used to determine drug involvement in the death. Descriptive statistics were calculated for the most frequently mentioned drugs involved in drug overdose deaths. Deaths involving multiple drugs were counted in all relevant drug categories.

Results:

Among drug overdose deaths with mention of at least one specific drug, the most frequently mentioned drugs during 2017–2023 included: fentanyl, heroin, oxycodone, morphine, methadone, hydrocodone, alprazolam, diphenhydramine, cocaine, methamphetamine, amphetamine, gabapentin, and xylazine. Fentanyl ranked first across all years and was the most common concomitant drug found with other top drugs, ranging from 99.0% of xylazine-involved drug overdose deaths to 48.3% of oxycodone-involved drug overdose deaths. Cocaine and methamphetamine were also frequent concomitant drugs. Trends in age-adjusted rates across the 2017 to 2023 period varied by drug, but notably the rate for heroin-involved deaths sharply declined, while the rate for fentanyl-involved deaths increased and then stabilized between 2022 and 2023. In 2023, the most frequently mentioned drugs in unintentional drug overdose deaths were fentanyl, methamphetamine, and cocaine, while the most frequently mentioned drugs for suicide-related drug overdoses were diphenhydramine, oxycodone, and bupropion.

Conclusions:

This report identifies patterns in the specific drugs most frequently involved in drug overdose deaths from 2017 through 2023.National Vital Statistics Reports; CDC National Center for Health Statistics; 2026.

By lBenedikt Fischer,  Didier Jutras-Aswad, Bernard Le Foll, Daniel T. Myra

Highlights

•

The province of British Columbia (Canada) temporarily implemented a decriminalization initiative for personal drug possession/use (2023–2024) in contexts of a toxic drug death crisis.

1. •

   The decriminalization initiative was a priori promoted as a “tool to end the overdose crisis” and widely expected to reduce adverse health outcomes from toxic drug use.

2. •

   Emerging evaluation data indicate that the drug decriminalization initiative was not associated with population-level changes in drug use-related mortality (e.g., overdose deaths) or morbidity (e.g., hospitalizations).

3. •

   Drug use decriminalization remains an essential step to align prohibition-based drug policy frameworks with public health and human rights principles, but must be approached realistically and designed sensibly.

4. •

   To tangibly address toxic drug use-related harms, expanded measures are required that are effectively capable of preventing and reducing PWUDs’ exposure to and use of toxic drugs
   International Journal of Drug Policy

Volume 150, April 2026, 105181

By Nicolas Sarullo .Yuriy Gorodnichenko, Tatyana Deryugina,James Hodson ,Ilona Sologoub, Anastassia Fedyk

Using household survey data on expenditures and incomes, we construct an objective measure of corruption in the public sector for a broad spectrum of countries. Specifically, we focus on the consumption-income gap for public sector workers relative to private sector workers to gauge the extent of hidden income (bribes) in the government. After validating our data and documenting properties of the consumption-income gap, we compare our measure with popular corruption perception indices. We find that i) the relationship between our measure and the alternatives is nonlinear; ii) available indices appear to be only weakly (and sometimes “wrongly”) correlated with the consumption income gap at high frequencies; iii) the available indices appear to have a low weight on the relative consumption-income gap in the public sector.