By 

• Elaine Okanyene Nsoesie, 

• Antonio S. Lima Neto, 

• Jonathan Jay, 

• Hailun Wang, 

• Kate Zinszer, 

• Sudipta Saha, 

• Adyasha Maharana, 

• Fatima Marinho & 

• Adauto Martins Soares Filho 

Homicides are a major problem in Brazil. Drugs and arms trafficking, and land conflicts are three of the many factors driving homicide rates in Brazil. Understanding long-term spatiotemporal trends and social structural factors associated with homicides in Brazil would be useful for designing policies aimed at reducing homicide rates.

Methods

We obtained data from 2000 to 2014 from the Brazil Ministry of Health (MOH) Mortality Information System and sociodemographic data from the Brazil Institute of Geography and Statistics (IBGE). First, we quantified the rate of change in homicides at the municipality and state levels. Second, we used principal component regression and k-medoids clustering to examine differences in temporal trends across municipalities. Lastly, we used Bayesian hierarchical space-time models to describe spatio-temporal patterns and to assess the contribution of structural factors.

Results

There were significant variations in homicide rates across states and municipalities. We noted the largest decrease in homicide rates in the western and southeastern states of Sao Paulo, Rio de Janeiro and Espirito Santo, which coincided with an increase in homicide rates in the northeastern states of Ceará, Alagoas, Paraiba, Rio Grande Norte, Sergipe and Bahia during the fifteen-year period. The decrease in homicides in municipalities with populations of at least 250,000 coincided with an increase in municipalities with 25,000 people or less. Structural factors that predicted municipality-level homicide rates included crude domestic product, urbanization, border with neighboring countries and proportion of population aged fifteen to twenty-nine.

Conclusions

Our findings support both a dissemination hypothesis and an interiorization hypothesis. These findings should be considered when designing interventions to curb homicide rates

By Andre Mancha

I describe how monitoring and harsher law enforcement reduce the expected economic benefits of crime. I investigate the effect of shifts in legal authorities’ surveillance by focusing on junkyards, firms often associated with illegal markets and auto theft. Starting in 2014, many municipalities in Brazil increased the monitoring of spare parts sold by junkyards through new regulations at the state level.

I show that levels of auto theft dropped significantly after the introduction of the new law, and this decrease is more extensive in neighbourhoods containing junkyards. Municipalities that implemented the new regulation presented, on average, a 6.4 per cent drop in auto thefts by year compared to non-target ones. Other crimes do not show a similar decrease, and there is no evidence of a previous downward trend in vehicles stolen.

My results shed some light on the effect of harsher supervision over a market that criminals may exploit to convert stolen vehicles into cash.

Helsinki, Finland:  United Nations University, World Institute for Development Economic Research (UNU-WIDER), 2022. 27p.

by Amanda R. Witwer, Lynn Langton, Michael J. D. Vermeer, Duren Banks, Dulani Woods, Brian A. Jackson

The proliferation of websites, social media platforms, and applications that enable users to interact virtually and often anonymously has given rise to new modes and methods of perpetrating harassment, abuse, and other criminal behaviors that compromise victims' privacy and safety. These types of acts, termed technology-facilitated abuse (TFA), can involve the use or distribution of the victim's personal information, which compromises the victim's privacy and poses a threat to their safety. Efforts to combat these profoundly harmful acts are limited by a lack of awareness among the general public and criminal justice practitioners, impediments to investigation and adjudication presented by digital spaces, and laws and policies that have not kept pace with advancements in digital technologies. To examine this issue, RTI International and the RAND Corporation convened an expert workshop. The participants discussed the challenges, opportunities, and complexities faced by law enforcement and criminal justice practitioners in TFA cases. Using these discussions, the panel members identified and ranked needs for the public, law enforcement, and criminal justice practitioners to successfully identify and prosecute TFA cases. This report provides the prioritized list of needs and accompanying context from the discussion that resulted from this effort.

Santa Monica, CA: Rand Corporation, 2020.   25p.