Overview
In response to highly publicized violent incidents in schools, such as the Columbine High School massacre, school disciplinary policies have become increasingly severe. These policies have been implemented at the school, district, and state levels with the goal of ensuring the safety of students and staff. Many of these policies have one component in common: zero tolerance. While it is clear that protecting the safety of students and staff is one of school leaders‘ most important responsibilities, it is not clear that zero tolerance policies are succeeding in improving school safety. In fact, some evidence based on nonexperimental studies suggests that these policies actually may have an adverse effect on student academic and behavioral outcomes.