5. Banning potential violators from campus
Banning potentially dangerous persons from campus property combined with the arrest and search of violators who return can help campus officials interdict a potentially dangerous person before they can open fire. As one example, a planned school shooting was averted in Hinesville, Ga., when a school resource officer arrested three individuals who returned to the campus after he banned them earlier in the afternoon. When three guns were found in their possession, the suspects admitted they had come to the school to carry out a planned shooting.