Objective: This study documents life course patterns of vicarious exposure to the criminal legal system among parents and siblings in the United States. Background: The criminal legal system shapes family outcomes in important ways. Still, life course patterns of vicarious exposure to the system-especially to lower-level contacts-among parents and siblings are not well documented. Method: Using longitudinal data from the Panel Study of Income Dynamics, Kaplan-Meier survival curves, and Cox regression models, we estimate cumulative risks of vicarious exposure to arrest, probation, and incarceration among parents (n = 3885 parents; 185,444 person-years) and siblings (n = 1875; 44,766 person-years) and examine disparities by race-ethnicity, gender, and education, and at their intersections.