By Leander Andres, Stefan Bauernschuster, Gordon B. Dahl, Helmut Rainer, Simone Schüller

This paper studies the impact of birthright citizenship on youth crime. We leverage a reform which automatically granted birthright citizenship to eligible immigrant children born in Germany after January 1, 2000 and administrative crime data from three federal states. Immigrant youth who acquired citizenship at birth are substantially less likely to engage in criminal activity, with estimates indicating a 70% reduction. These results are particularly relevant in light of ongoing debates in the U.S. about abolishing birthright citizenship. Our findings suggest that inclusive citizenship policies can reduce crime and its associated costs, which in turn could strengthen social cohesion.

By The Alliance for Youth Justice

The briefing, funded by the Barrow Cadbury Trust, examines what happens as exploited children turn 18, exploring how responses across safeguarding and criminal justice fail to keep pace with ongoing risk and harm. It sets out principles and practical steps to ensure protection continues into young adulthood and to prevent the unjust criminalisation of victims.

While awareness of CCE has grown, responses for children remain inconsistent and are too often led by punishment. At 18, those weaknesses are magnified. Support frequently falls away, thresholds for help rise, and young adults are more likely to be treated as perpetrators than recognised as victims. As parliament considers the Crime and Policing Bill’s new offence of child criminal exploitation (CCE), there is a critical opportunity to improve the response for victims – but a growing risk that exploited young adults will be prosecuted as perpetrators.

The briefing is informed by an evidence review and consultation with professionals, legal practitioners, academics, civil servants, and sector experts and identifies several urgent issues:

By Olivia Naugle

The youth justice system was created because youth are different from adults.1 State departments of juvenile justice have purpose clauses affirming that rehabilitation is their primary goal. In the youth justice system, youth have access to developmentally appropriate services that are not available in the adult criminal legal system. Sending youth to the adult criminal justice system, for any offense, harms youth wellbeing and community safety.

By Catalina Amuedo-Dorantes, Marilyn Ibarra-Caton

Background

Mexico rolled out state-led criminal justice reforms between 2000 and 2017 to modernize procedures and improve rule of law. Whether these changes reduced violent crime—especially in cartel-affected areas—remains uncertain.

Aims

Estimate the impact of reform implementation on homicides and arrests, and assess mechanisms related to enforcement capacity and public cooperation with law enforcement.

Materials & Methods

We build a municipality–year panel (2000–2017) from death certificates (homicides) and administrative records (arrests). Because states adopted reforms at different times, we use difference-in-differences estimators designed for staggered adoption and heterogeneous treatment effects, with rich fixed effects and controls. To probe mechanisms, we analyze nationally representative survey measures of crime reporting, institutional trust, and perceived police/prosecutorial integrity.

Results

Reform implementation is associated with a ~25% increase in homicide rates. Over the same horizon, arrest rates fall by >50%. As homicides are less prone to underreporting than other crimes, the homicide increase is unlikely to be a reporting artifact. Survey evidence shows reduced crime reporting, declining trust in institutions, and more negative views of police and prosecutors; effects are strongest in cartel-affected regions.

Discussion

The pattern is consistent with an erosion of effective enforcement capacity at rollout: fewer arrests and lower public cooperation raise expected returns to violent crime. In high-violence settings, reforms that change procedures without parallel boosts to investigative and prosecutorial capacity—and without safeguards for witnesses—can weaken deterrence.

Conclusion

Mexico’s staggered judicial reforms coincided with higher homicides and sharply lower arrests. Successful reform in violent contexts likely requires coordinated institutional strengthening (policing, prosecution, witness protection), phased implementation with measurable benchmarks, and strategies to sustain public trust and reporting.

By The International Organization for Migration

This report, Climate Chains: Mapping the Relationship between Climate, Trafficking in Persons and Building Resilience in the Philippines, explores the complex links between climate change, livelihood, vulnerability, migration and human trafficking in the Philippines. Commissioned by IOM under the Climate Resilience Against Trafficking and Exploitation (CREATE) project, this study forms part of a broader research focusing on Ethiopia and the Philippines – two countries facing distinct climate challenges: slow-onset droughts and sudden-onset typhoons, respectively.  

The research used a mixed-methods approach including household surveys, interviews and focus group discussions. The report puts forward a conceptual model that links climate events and trafficking through a series of intertwined steps. It identifies a causal chain where climate events disrupt livelihood, increase vulnerability and heighten migration intentions, which can lead to exploitation and trafficking. The research explores how factors linking climate and trafficking operate in the Philippines. 

This study provides critical insights and recommendations for policymakers, donors and organizations in the Philippines and internationally that are working to combat human trafficking and exploitation, while strengthening resilience to climate change

By Ichiro Iwasaki and Kocenda, Evzen

We examine the corporate criminal records of 18,187 firms operating in 17 European emerging markets and empirically analyze the effects of board composition and national institutions on crime deterrence. Our analysis reveals that 872 firms (about 5% of the sample) committed 1,734 crimes over 2020-2023. We show that firms with larger boards and greater board independence are associated with higher incidences of corporate crime, suggesting that larger or nominally independent boards may not function effectively in emerging market contexts. In contrast, female leadership and board gender diversity do not exhibit significant deterrent effects, implying that gender inclusion alone may not suffice in these environments. In banks with an outside board chairman, the occurrence of corporate crime increases substantially. Importantly, stronger national institutions consistently correlate with lower crime rates, a pattern observed universally across European emerging markets, and boards in countries with stronger institutions appear more effective in deterring crime

CESifo Working Paper No. 12132 54 Pages Posted: 23 Sep 2025

By Wang Ngai Yeung, Riccardo Di Clemente & Renaud Lambiotte

Criminal networks such as human trafficking rings are threats to the rule of law, democracy and public safety in our global society. Network science provides invaluable tools to identify key players and design interventions for Law Enforcement Agencies (LEAs), e.g., to dismantle their organisation. However, poor data quality and the robustness of criminal networks make effective intervention extremely challenging. Although there exists a large body of work building and applying network scientific tools to green intervene criminal networks, these work often neglect the problems of data incompleteness and inaccuracy. Moreover, there is thus far no comprehensive understanding of the impacts of data quality on the downstream effectiveness of interventions. This work investigates the relationship between data quality and intervention effectiveness based on classical graph theoretic and machine learning-based targeting approaches. Decentralization emerges as a major factor in network robustness, particularly under conditions of incomplete data, which renders intervention strategies largely ineffective. Moreover, the robustness of centralized networks can be boosted using simple heuristics, making targeted intervention more infeasible. Consequently, we advocate for a more cautious application of network science in disrupting criminal networks, the continuous development of an interoperable intelligence ecosystem, and the creation of novel network inference techniques to address data quality challenges.

 EPJ Data Sci. 14, 37 (2025)

By Marcelo F. Aebi Stefano Caneppele Lorena Molnar (Eds.)

  Cybercrime has become part of everyday life. We live in hybrid societies, fl uctuating between the material and the virtual world, and we are hence confronted with online, offl ine and hybrid offences. However, the few victimisation surveys conducted in Europe reveal that victims of online crimes seldom report them to the police. Consequently, cybercrimes – which according to the best estimates represent between one third and more than half of all attempted and completed crimes in Europe – seldom appear in national criminal statistics. The State seems powerless to prevent them and private security companies fl ourish. During two days, experts from all over the continent gathered together in the framework of a virtual conference organized by the Council of Europe and the European Union to discuss what we know, what we do not know, and what we could do to improve our knowledge of crime in our contemporary hybrid societies, develop evidence-based criminal policies, provide assistance to crime victims, and implement realistic programs in the fi eld of crime prevention and offender treatment. This book presents their experiences, refl exions, and proposals  

The Hague: Eleven Publishing, 2022. 150p.