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Posts in Drug Markets
The Evolution of Mara Salvatrucha 13 and Barrio 18: Violence, Extortion, and Drug Trafficking in the Northern Triangle of Central America"

By Pamela Ruiz

The Mara Salvatrucha 13 (mara) and Barrio 18 (pandilla) gangs have become a major concern for the governments of the Northern Triangle of Central America (Guatemala, El Salvador, and Honduras) and the United States. In recent years, government officials have attributed violence and the exodus of Central Americans to the developing capacities of gangs. The Mara Salvatrucha 13(MS-13) and Barrio 18 have been identified to strategically implement violence and extortion rackets which have led to transformations in their organizational structures and increased participation in drug trafficking. Furthermore, officials insinuate that gangs have developed capacities to confront security forces that enter gang territory with an increase in confrontations. This has resulted with Northern Triangle governments reclassifying gangs as organized crime and/or terrorist organizations; but, do these gangs meet the requirements to be classified as such? The overall purpose of this study is to examine the evolution of MS-13 and Barrio 18 in the Northern Triangle of Central America using mixed methods. Crime pattern theory provided the framework to understand the crime opportunity structures to explain the concentration of violence (homicides, extortion, and confrontations). Organized crime and gang concepts were used to evaluate gangs’ evolution with regards to their use of violence, extortion rackets,transformations in organizational structures, and roles in drug trafficking with a focus on their alliances with Los Zetas and the Sinaloa cartel (Mexican DTOs). Phase I of this study used official quantitative data to map the spatial concentration of homicides, extortions, and confrontations (gang-related crimes) at the municipality level for each country from 2007-2017. Phase II gathered qualitative data through purposive, semi-structured interviews with subject matter experts (academics, law enforcement, and NGO personnel) to obtain a more comprehensive understanding of the concentration of violence and whether gangs had evolved to organized crime organizations. Triangulation of the study data provided a more concise display of where these crimes concentrate and contributing factors to the gangs’ evolution. This study concludes illicit political economic networks between corrupt officials, narcotrafficking groups, and gangs contribute to violence and impunity in the Northern Triangle of Central America. The concentration of homicides in border municipalities was often associated with drug trafficking, homicides in urban areas were often associated with gangs, and homicides in rural areas were attributed to vengeance murders. Extortion concentrated in urban centers and was described as a crime of opportunity with various “imitators” involved. Confrontations between law enforcement personnel and gangs have led to formal accusations of extrajudicial executions. Moreover, the politicization of gangs has limited attention to address criminal activities and violence that are not associated with gangs. Therefore, this study’s findings indicate violence in the Northern Triangle of Central America can be attributed tointer-and-intra gang violence, 2) inter-and-intra narcotrafficking violence, 3) state violence and 4) non-gang related violence. Lastly, it is unquestionable MS-13 and Barrio 18 have evolved, while it is premature to classify these gangs as an organized crime group; this study puts forth categorizing gangs as “organized delinquency” to best describe their capacities.

CONTRABAND TOBACCO: SYSTEMATIC PROFILING OF CIGARETTE PACKS FOR FORENSIC INTELLIGENCE

By Laurie Caron, Frank Crispino and Cyril Muehlethaler

Tobacco smuggling remains a widespread illegal activity in Canada, associated with important social and economic impacts, and often linked to organized crime. This study explores the application of forensic profiling as an intelligence tool to support the analysis of contraband cigarette production and distribution. Physical and chemical manufacturing characteristics of seized contraband cigarette packs, provided by the Canada Border Services Agency (CBSA), were observed and coded using macroscopic, microscopic, and spectroscopic techniques. Multivariate statistical analyses were then conducted to compare manufacturing characteristics between packs and identify potential links. The analyses highlighted links between cigarette packs and seizures based on shared manufacturing characteristics. The results and the identified groups were also compared with seizure data provided by the CBSA. The results demonstrate the relevance of forensic profiling to formulate hypotheses regarding shared production processes or supply networks. These hypotheses provide information that contributes to understanding tobacco smuggling and aim to examine how forensic intelligence can support law enforcement and measures to prevent and disrupt this criminal activity. A preliminary optimal procedure for applying forensic profiling in operational contexts targeting contraband tobacco was finally proposed. Despite limitations in the dataset creation that were beyond our control, this study represents a starting point for applying this scientific approach to tobacco smuggling

Assessment Of The Abuse and Dependence Potential Of New Psychoactive Substances: Synthetic Opioids

By The Laboratory and Scientific Services
United Nations Office on Drugs and Crime; 

The scientific evaluation of substances for inclusion in international and most national legislations requires an assessment of a range of chemical, pharmacological, and toxicological properties of a substance. Also, for many of the NPS that have emerged, quality comparable scientific data on these properties are either scarce or do not exist. The aim of these UNODC guidelines is to support Member States in the generation of quality scientific data on key pharmacological properties used in the scientific evaluation of substances, specifically the determination of the abuse and dependence potential of NPS. Given the continued emergence of highly potent synthetic opioids in recent years, this guideline will focus on synthetic opioids and future volumes will contain information on other groups of NPS.

Vienna: UNODC< 2025. 58p.

Does Regulating Drug Precursors Affect Illicit Drug Markets? An Expanded and Updated Systematic Review

By Luca Giommoni, Kirsty Stuart Jepsen, Shannon Murray

Background

Many countries are placing greater emphasis on regulating precursor chemicals used in illicit drug production. However, the latest review on this topic is 14 years old and limited to North American methamphetamine regulations. This review updates and expands on past work by assessing how precursor regulations affect illicit drug markets.

Method

We conducted a systematic review following PRISMA guidelines, searching 13 databases and relevant organizational websites for grey literature. Eligible studies quantitatively assessed precursor regulations' impact on drug supply, demand, or related harms. Due to intervention variability, we used narrative synthesis. Bias risk was evaluated with the EPOC Risk of Bias Tool.

Results

Twenty-six studies met the inclusion criteria, published between 2003 and 2023, focusing on methamphetamine (n = 23), cocaine (n = 3), and heroin (n = 1). Most were from the USA (n = 20), with others from Canada (n = 1), Mexico (n = 1), Australia (n = 3), and the Czech Republic (n = 1). The studies assessed 12 outcomes across 37 interventions, 14 of which were effective and 23 ineffective. Effective interventions led to impacts such as a 100 % price increase, a 40 % purity reduction, and a 43 % drop in past-month drug use, lasting from months to seven years. Ineffective interventions shared three issues: targeting unused chemicals, focusing on small-scale operations, or failing as suppliers adapted to new sources or routes.

Conclusions

Precursor regulations can reduce the supply, use, and harms of heroin, cocaine, and methamphetamine. However, they are not a one-size-fits-all solution. Their effectiveness depends on how they are designed and the context in which they are implemented.

Drug and Alcohol Dependence; 2025 Volume 276, 1 November 2025, 112900