Traditionally, middle and high schools have provided their students with lockers to store coats, books, and lunches. Today, there is a movement to eliminate lockers because of new technologies (iPads, eBooks, etc.). It might be a good thing, to save money and space, but one of the reasons officials list is to help combat violence.
It's true that some students have hid contraband like sweet treats and drugs, and from time to time weapons, in their lockers. But eliminating lockers to combat crime isn't going to work. School officials, teachers, and parents are going to have to start teaching children right from wrong, good from bad.