With the school year just starting, I am curious as to what different school systems do in threatening situations, and how lockdowns are handle if a threatening situation arises.

How does your school system decide whether to consider a situation threatening or not, and what action do they take if they decide it is threatening.

In a lockdown are children still sent to the buses if it's the end of the day, and walkers still sent home? And if they are released what precautions are taken to make sure it is safe to release them?

Would especially appreciate the comments of people that work for a school.

Judy