A confrontation captured in a cellphone video shows the arrest of a St. Paul, Minn., student by a school police officer. The student, who had previously attended the high school and claimed he was visiting a teacher, was pepper-sprayed, then arrested for trespassing. The video of the incident went viral, and in response, dozens of students from the high school walked out in protest. Mo Canady, the executive director of the National Association of School Resource Officers, analyzes, from his perspective, how the situation was handled. To see more of Education Week’s reporting on police in schools and rates of student arrests and referrals to law enforcement, visit www.edweek.org/go/schoolpolicing