Educators and researchers have long sought to understand--and illuminate--factors outside of school that shape students' educational outcomes. In 2019, the Research Alliance published a policy brief ("Aggressive Policing and Academic Outcomes: Examining the Impact of Police "Surges" in NYC Students' Home Neighborhoods," ED594817) that highlighted a startling connection between NYC students' academic performance and their exposure to policing in their home neighborhoods. It was found that living in a neighborhood that was undergoing a "police surge" had a considerable negative effect on educational outcomes for middle-school-aged Black boys. This latest study builds on this prior work to examine how long-term exposure to heavy neighborhood policing influences students' high school graduation rates. This new study follows five cohorts of NYC public school students from middle through high school (a total of 231,177 students). The findings reveal starkly different experiences with neighborhood policing across racial/ethnic groups--and show that these inequalities contribute to well documented gaps in high school graduation rates. This brief provides a summary of both the earlier findings and the new work, and outlines important implications for policy and practice.