I could guess that the doors were monitored, but as the children probably were to be in the classroom at 8:45, what is the point of the door monitoring?
Schools have to be built like our new ones are here, that there is one way in, and that is through the office.
Of course, that doesn't stop anyone who wants to walk out a door as they cannot be locked because of fire.
Then the cameras would come into play.
Our doors are such that there is a buzzer that has to be pushed that is too high for a student to reach.
Our schools are also built so that the common areas can be locked and not access the rest of the school.
So far that's the only thing that makes sense.
Schools have to be built like our new ones are here, that there is one way in, and that is through the office.
Of course, that doesn't stop anyone who wants to walk out a door as they cannot be locked because of fire.
Then the cameras would come into play.
Our doors are such that there is a buzzer that has to be pushed that is too high for a student to reach.
Our schools are also built so that the common areas can be locked and not access the rest of the school.
So far that's the only thing that makes sense.