Abstract
This study aims to identify and analyze the obstacles to intersectorality in the São Paulo Policy for the Prevention of Violent Deaths of Children and Adolescents in the State of São Paulo, Brazil, established by Law n. 17,652/2023, within the scope of the actions of the São Paulo Committee for the Prevention of Homicide in Adolescence. This is a qualitative study using the case study technique based on: interviews, participant observation, field diary and document analysis. The results showed that obstacles to the implementation of intersectorality in this Law exist, given the sectorization present both in Bill n. 382/2022, which originated it, and the vetoes in its final version, enacted by the government in March 2023. Intersectoral policies must have instruments to guarantee the articulation of sectors, clearly defining the responsibilities of those involved. In addition, it is of fundamental importance to recognize the limits of the powers attributed to the legislature when proposing laws that aim to establish them.