By Sara Giunti, Andrea Guariso, Mariapia Mendola, Irene Solmone 

In advanced economies, increasing population diversity often fuels hostile attitudes toward immigrants and political polarization. We study a short educational program for highschool students aimed at promoting cultural diversity and improving attitudes toward immigration through active learning. To identify the impact of the program, we designed a randomized controlled trial involving 4,500 students from 252 classes across 40 schools in northern Italy. The program led to more positive attitudes and behaviors toward immigrants, especially in more mixed classes. In terms of mechanisms, the intervention reduced students’ misperception and changed their perceived norms toward immigration, while it had no impact on implicit bias, empathy, or social contacts. Our findings suggest that anti-immigrant attitudes are primarily driven by sociotropic concerns rather than individual intergroup experience, and that educational programs combining critical thinking with cross-group discussion can correct them. 

  IZA DP No. 17978

Bonn:  IZA – Institute of Labor Economics , 2025. 71p.

By Ryan Bowman

While previous research has explored the relationship between sporting events and crime in larger geographic spaces, research has not comprehensively examined how characteristics of sporting events influence arrests made inside stadiums themselves. Using a dataset of police records encompassing several seasons of the National Football League (NFL), this study explores how individual game characteristics influence the number of arrests made by police within the confines of the stadiums and stadium parking lots. Grounded in the routine activities theory, multilevel regression models suggest that certain game characteristics can influence the number of arrests made at a game.

DEVIANT BEHAVIOR 2025

his chapter covers the early history of bandits including the role of bandits in revolution (e.g., Pancho Villa), the rise of urban guerrillas (e.g., Che Guevara and the Cuban Revolution, Carlos Marighella (the Minimanual of the Urban Guerrilla)) in Brazil and the Tupamaros in Uruguay, and the transition from ideological revolt to criminal insurgency. The later transition will focus on the transition to crime by the FARC and ELN in Colombia succeeded by Bacrim in Colombia, mega-gangs in Venezuela, and by Brazilian gangs (i.e., The Commando Vermelho and Primeiro Comando da Capital), followed by the rise of criminal insurgency waged by territorial (third-generation) gangs (including maras such as MS-13 and Barrio 18 in Central America) and criminal cartels. The nexus between prison gangs and criminal gangs and the emergence of criminal enclaves (such as the Triple Frontier and Ciudad del Este) will be explored. A common thread will be a discussion of crime and social banditry (Hobsbawm) as mechanisms of revolt. Urban crime and instability and the emergence of crime wars and criminal insurgency will be discussed in context of state transition, globalization, and the rise of transnational organized crime.  

Chapter
Problems and Alternatives in the Modern Americas,  Routledge,  2021.

By Jonathan Gilbert  · Michael Levi

 This article examines the role of organised crime groups (OCGs) in the organisation and commission of mortgage and property related frauds. Whilst conventionally in criminological and policing studies, serious and organised crime has been associated with the commission of violent, gang and drug-related crimes, there is an increasing focus on the collective and facilitative role that motivated ofenders and ‘professional enablers’ like lawyers and accountants have in the commission of fnancial crimes for gain. This article utilises case studies and social network analysis (SNA) of police-defned OCGs to identify the ties criminal actors have with other ‘members’ and broader connections. It considers causal agency and the social relations that exist within the OCG that support highly organised and sophisticated operational dynamics necessary to the commission and reproduction of organised fraud. In addition to a review of the current literature, empirical data was collected from regulatory enforcement proceedings, criminal prosecution fles, trial transcripts, witness statements and interviews with law enforcement, regulators, victim-lender participants and lead members of mortgage and property fraud OCGs. SNA is used to show how members collectively share motivations to plan and co-ordinate criminal behaviour for fnancial gain, communicate and collaborate on both an ongoing enterprise and individual project basis, and how recruitment strategies, based on kinship, support resilience and the ability to reproduce organised fraud. Examining the social network of mortgage fraud OCGs, including biographies, roles, responsibilities of members, including professional enablers and straw persons and the ties and interactions between them, will assist in understanding mortgage fraud. In particular, they will show how these individual, proximal and causal factors ft within the broader, macro- crime facilitative environment in which mortgage and property related frauds are organised and are capable of being reproduced. 

By Leila N. Sadat

This Article presents a comprehensive overview of the development, challenges, and future prospects of creating and ultimately negotiating a global treaty for crimes against humanity. It honors pioneers in the field and acknowledges the contributions of various individuals and entities to the Crimes Against Humanity Initiative the author established in 2007. It traces the historical context of atrocities such as slavery and the slave trade, linking them to the modern concept of crimes against humanity. The Article reviews the evolution of international criminal law, particularly under the Rome Statute of the International Criminal Court (ICC), emphasizing the necessity of a new treaty to fill gaps left by existing frameworks. Highlighting contemporary examples like the Syrian Civil War, it underscores the preventive power of prosecuting crimes against humanity as a move towards preventing the commission of atrocity cascades, before the descent into armed conflict and genocide. The Article describes the multi-decade effort to draft and promote a new treaty, including significant milestones, such as the adoption of the International Law Commission’s (ILC) 2019 Draft Articles, and the protracted and ultimately successful advocacy within the UN General Assembly’s Sixth (Legal) Committee to achieve a consensus resolution in 2022 that allows the process to move forward. The 2024 adoption of GA Resolution 79/122, which authorizes convening a United Nations Diplomatic Conference for crafting a comprehensive legal instrument, was a critical achievement, setting the stage for negotiations over the next several years. The Article reflects upon the enduring struggle for justice and the imperative to adopt, ratify, and enforce a new treaty, drawing historical parallels with the abolition of the transatlantic slave trade. It concludes with a call for continued dedication to ending impunity for crimes against humanity globally.

Washington University Global Studies Law Review, 2025, Vol 25, Issue 2, p302

By Michael Rempel, Olive Lu, & Sarah Monaghan

In January 2020, New York’s landmark bail reform law went into effect. This report provides a definitive examination of how bail reform reshaped the pretrial landscape after five full years of implementation. Covering all regions of the state, and drawing on court data from 2018 to 2024 (spanning pre- and post-reform timeframes), the report examines bail reform’s impact on:

• Pretrial Decision-Making at Arraignment: Rates of release on recognizance, supervised release, bail, and pretrial detention; and estimated numbers of cases not resulting in pretrial detention due to changing practices under bail reform.

• Affordability of Bail: For cases that continue to be assigned bail, median bail amounts, bail posting rates, and judges’ use of “alternative” payment methods (partially secured bonds and unsecured bonds) that legislators intended to ease people’s ability to pay.

• Racial and Ethnic Disparities: Disparities among Black, Hispanic, and white people in judges’ rates of continuing to set bail or remand people directly to jail.

• Three Rounds of Bail Amendments: Effects of amendments respectively put into effect in July 2020, May 2022, and June 2023 (entailing a first-ever analysis of the 2022 and 2023 amendments).

New York: Data Collaborative for Justice, 2026. 47p.

By Nazgol Ghandnoosh, Bobby Boxerman and Celeste Barry
Prior criminal records account for a large share of already lengthy prison sentences, often adding years or even decades to sentences, without evidence of community safety benefits.

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What’s new? Recruitment of children to fight in armed and criminal groups has boomed across Colombia over the last decade, with hundreds of minors lured into joining violent groups on false promises of wealth, status and protection. This war crime disproportionately affects Colombia’s ethnic communities and those who live in conflict zones.

Why does it matter? Armed groups rely on minors to maintain territorial control. Children carry out high-risk tasks, suffer abuse, and are punished with death if caught escaping. Recruitment shatters communities’ ability to resist armed groups because locals fear their own family members will be the targets of reprisals if they speak out.

What should be done? Colombia should act promptly to identify children at risk, boost protection at schools (where recruitment often happens) and strengthen its criminal investigations into the perpetrators. Foreign donors should support police efforts to track recruiters and help strengthen communities’ ability to prevent the crime from taking place.

International Crisis Group, 2026, 28p.

By Patrick Butchard, Philip Loft

Genocide is a crime under international law, according to the United Nations General Assembly. The 1948 Genocide Convention, which has 153 parties requires party states to punish those responsible for genocide. The convention also requires states to prevent genocide from occurring. While it does not set out how they must do this, judgments on cases before the International Court of Justice (ICJ) have clarified some details of the obligation. What are a state’s obligations in international law? Judicial decisions from the International Court of Justice suggest that: • States are required to try to prevent genocide, but they do not breach their obligation if they fail. – They must still try even if they think their actions will not succeed

– What counts as a reasonable attempt at preventing genocide will depend on a state’s circumstances. • States must take action to prevent genocide as soon as they become aware there is a serious risk of it. • Genocide must actually occur for a state to be in breach of its obligation to prevent it. • Measures to prevent genocide might include engaging with bodies of the UN, such as the Security Council, or directly with other states. • States are unlikely to be allowed under international law to use military force against another state in an attempt to prevent genocide.

London: UK Parliament House of Commons Library, 2026. 25p.

By Brenda Scheuermann, Kathy Martinez-Prather, Anthony Petrosino,

The research tested the use of a multi-faceted, school-based law enforcement (SBLE) framework to determine how it contributes to multiple outcomes for 25 middle and high schools. Outcomes measured pertained to student victimization and delinquency, the use of exclusionary discipline practices, school climate, and student-officer interactions. Reliable findings were disseminated for implementation and further research in schools nationwide. The impact research questions are provided in this report. The framework for implementing school policing is provided.

San Marco, TX: Texas State University , 2022. 43p.