In many developing countries, access to justice remains unequal, especially for women. What are the implications of this inequality for gender-based violence, intra-household bargaining, and investment in children? This paper provides evidence from Peru on all-women’s justice centers (WJCs), specialized institutions that mostly employ female officers and provide police and legal services to reduce gender-based violence. Examining the gradual rollout of WJCs across districts/villages, we find that the opening of a center increases reporting of gender-specific crimes by 40% and reduces the incidence of gender-based violence measured by domestic violence, femicides and hospitalizations due to mental health by about 10%. We find, moreover, that a decrease in the exposure of women to violence has intergenerational effects: WJCs substantially increase human capital investments in children, raising enrollment, attendance, and test scores. These results are consistent with a bargaining model in which women’s access to justice determines the threat point.