During a Shelter-In situation, what is prohibited?

During a Shelter-In situation, permitting entry into the building is prohibited to ensure the safety of individuals inside. The primary goal of a Shelter-In is to secure the environment against outside threats and protect occupants from potential harm. By restricting entry, the procedure minimizes the risk of potentially dangerous individuals gaining access and maintains control over who is present in the building.

In contrast, locking classroom doors, while a common practice during such situations to enhance security, is typically allowed and encouraged. Leaving the building is also prohibited during a Shelter-In to keep everyone protected and contained in a safe area until authorities determine it is safe to exit. Using school resources can still be permitted for necessary communication or instructional purposes. Overall, the focus of a Shelter-In is on securing the premises and ensuring the health and safety of all individuals inside.