Inside the role of a school resource officer

Officer C.W. Bryant of the Hoover Police monitors a school hallway on Thursday. (

Preventing violence in schools has dominated the national conversation since the Sandy Hook massacre. One solution put forward by the National Rifle Association is to have an armed officer in every school.

School resource officers have been used in schools for years. The officers trained by the National Association of School Resource Officers (NASRO) are trained on a triad concept. The SRO is a teacher, an informal counselor, and of course, an armed officer.

NASRO reports that school- based policing is the fastest growing area of law enforcement. In fact, in 2012, the group hosted 42 training courses. This year, it has scheduled 50 courses, and it's only January.