"The 'School to Prison Pipeline' and similar concepts are used to describe how some youth are seemingly on a one-way path that begins with becoming disconnected with school, then continues to dropping out, and later entering the justice system. School policies that rely on overly punitive responses to student behavior and a reliance on law enforcement to address school discipline have led to increases in suspensions, expulsions, and referrals to the juvenile justice system for even minor infractions. As a result, students are taken out of school, missing important educational opportunities and, in some cases, made unable to return to school. The School to Prison Pipeline not only sends students directly into the justice system, but missed educational opportunities are linked to increased risk that a student will one day be involved in the justice system."
Petteruti, Amanda, "Education under Arrest: The Case Against Police in Schools," Justice Policy Institute (Washington, DC: November 2011), p. 19.