The legal socialization framework emphasizes the importance of adolescents' encounters with police. We examine how different types of police contact and neighborhood experiences are linked to the legal socialization process among adolescents living in São Paulo, Brazil. Drawing on 669 participants across three waves of panel data from the São Paulo Legal Socialization Study, results from the multilevel longitudinal model revealed that withinperson increases in vicarious police contact were linked to a decrease in police legitimacy over time. Exploratory analyses using a multilevel mediation model indicated that the observed negative effect of vicarious police contact was mediated by evaluations of police procedural justice. As for the between-person effects, voluntary police contact positively predicted police legitimacy over time. However, the effects of vicarious police contact and violent police contact were mediated by police procedural justice. Additionally, police legitimacy decreased for people who had more exposure to violence and lower levels of fear of crime. The study revealed that the nature of police contact and levels of exposure to violence can have important effects on adolescents' perceptions of police legitimacy, even after accounting for procedural justice.

This chapter introduces and discusses to what extent policies focused on promoting maternal and infant health through public health services are or are not effective in the coverage area. The discussion is based on accounts of adolescentsmothers or still pregnant-and the assistance provided to them and their children through these services. The accounts, which are derived from an independent program of home visits to accompany these adolescents, are complemented by observations made by the visitation team about whether assistance provided by health services promote maternal and infant health and the rights of children and adolescents. To provide context, we present a panorama of current public-health policies and services aimed at mothers and infants in Brazil, as well as some health indicators for this population. Finally, we discuss the possibilities and challenges of promoting the healthy development of mothers and their children in these contexts.