U.S. public school students increasingly attend schools with sworn law enforcement officers present. Yet, little is known about how these school resource officers (SROs) affect school environments or student outcomes. Our study uses a fuzzy regression discontinuity (RD) design with national school-level data from 2014 to 2018 to estimate the impacts of SRO placement. We construct this discontinuity based on the application scores of nearby police agencies for federal school-based policing grants. We find that SROs do effectively reduce some forms of violence in schools, but do not prevent school shootings or gun-related incidents. We also find that SROs intensify the use of suspensions, expulsions, police referrals, and arrests of students. These effects are consistently over two times larger for Black students than White students. Finally, we observe that SROs increase chronic absenteeism, particularly for students with disabilities.
Nationwide, school principals are given wide discretion to use disciplinary tools like suspension and expulsion to create a safe learning environment. There is legitimate concern that this power can have negative consequences, particularly for the students who are excluded. This study uses linked disciplinary, education, and criminal justice records from 2008 to 2016 in North Carolina to examine the impact of principal driven disciplinary decisions on middle school student outcomes. We find that principals who are more likely to remove students lead to reductions in reported rates of minor student misconduct. However, this deterrence comes at a high cost – these harsher principals generate more juvenile justice complaints and reduce high school graduation rates for all students in their schools. Students who committed minor disciplinary infractions in a school with a harsh principal suffer additional declines in attendance and test scores. Finally, principals exhibiting racial bias in their disciplinary decisions also widen educational gaps between White and Black students.