A Lockdown is a response to a life-threatening emergency within the building, on school grounds or immediate surroundings of the school. The Lockdown procedure outlines steps taken to protect staff and students from injury or death during an incident and ensures the safety of all occupants when necessary. This type of lockdown requires that all staff and students seek as much safety from physical assault as possible by using barriers to sight (hiding behind/away from/beneath) as well as physical barriers. This procedure requires immediate, evasive action on the part of staff and students, and it rapidly enhances the level of security in the building. 

The following definitions for Lockdown and Secured Campus are general definitions and apply to most incidents. However, since not all situations are the same, school administration may utilize the response most appropriate based on information available to them at the time of the incident.