This project consists of a pilot impact evaluation of the Athletes for Peace program, an initiative developed by Fight for Peace aimed at preventing youth violence in the Maré Complex in Rio de Janeiro. The evaluation seeks to understand the effects of combining sports activities, socio-emotional development, and social support on the trajectories of children, adolescents, and young people exposed to contexts of high vulnerability and armed violence.

The project consists of conducting the impact evaluation of five violence prevention programs implemented by the Government of Ceará under PReVio (Integrated Program for Violence Prevention and Reduction). The initiative is funded by the Inter-American Development Bank (IDB) and encompasses interventions targeting different populations, including children, adolescents, young people, women experiencing violence, and public security professionals, covering initiatives in the fields of education, social development, and public security.

Building technical and strategic capacities to transform public safety and justice in the State of Rio de Janeiro.

This project aims to provide technical assistance to the City of Rio de Janeiro in creating a municipal public safety policy guided by data, scientific evidence and international best practices.

Using quantitative and qualitative research techniques, this project aims to develop and validate methodological strategies to map, monitor, and mitigate the impacts of violent criminal organizations in Areas with Severe Operational Restrictions (ASRO) within Light’s concession area. The initiative integrates the company’s internal data with other public and private information sources, focusing on identifying the extent and evolution of ASROs, as well as analyzing the specific territorial dynamics of each criminal group, particularly measuring the impact these groups have on territorial control and their relationship with electricity distribution services.

This project, initiated in 2024 and carried out in partnership with the Paraná Secretariat of Public Security (SESP-PR) and the Inter-American Development Bank (IDB), developed a predictive model to assess the risk of revictimization among women in domestic violence cases in Paraná. The tool was designed to classify cases according to the likelihood of subsequent victimization, providing insights to support the targeting of public policies aimed at preventing revictimization and femicide.

Este projeto, desenvolvido pelo Leme a pedido do Banco Interamericano de Desenvolvimento (BID), teve como objetivo consolidar indicadores de segurança pública e crime organizado no Brasil, estruturando uma base abrangente de dados capaz de qualificar o diagnóstico sobre a dinâmica da violência criminal no país.

The project aimed to conduct the first experimental evaluation of hot-spot policing in Brazil, structured as a randomized controlled trial. The initiative was led by the Inter-American Development Bank (IDB) in partnership with the Paraná Military Police and the State Public Security Secretariat. During the research, 422 street segments with high robbery incidence were identified, mapped using georeferenced data and advanced spatial analyses. Half of these segments were randomly selected to receive additional policing for three months, while the other half served as a control group to assess the project’s impact.

This project, developed by Leme in 2025 at the request of Neoenergia, aimed to analyze the public security situation in Pernambuco, focusing on identifying the presence and activities of organized criminal groups and their impacts on the utility’s operations.

The project aimed to evaluate the impact of the expansion of the Rondas e Ações Intensivas e Ostensivas (RAIO) program of the Ceará Military Police, a specialized force focused on rapid patrolling with high-powered motorcycles and high-caliber firearms. The research involved a quantitative analysis of crime indicators and a household survey to understand the population’s perception of police performance, comparing RAIO officers with conventional military police. This survey included visual experiments using images of officers in both uniforms, with or without motorcycles and long guns, to identify which attributes the population values most regarding their sense of security and trust in police performance. For the empirical analysis, the fact that RAIO was expanded to municipalities in phases was used, allowing researchers to identify whether there is a systematic effect on crime reduction in municipalities once they receive this type of policing.