It's a magic piece of paper.
You call the mother, the mother comes to the door, you let her in, she goes to check on her child, you throw a fit because she didn't "respect your authority" by coming before you and begging humbly your permission to see her child and call the cops.
These "procedures" do nothing to protect the children. They are all about the egos of the petty tyrants getting stroked.
As I said up above ...
This security protocol is not for the crazed and criminally insane person. That is going to take armed personnel to deal with them.
What this security protocol is for - is related to the paperwork that you sign upon enrollment, which tells the school who is allowed access to your child. They are following that legal paperwork that was given at the beginning of the year.
Exactly. Because “everyone is buzzed in”, any criminal who means harm to the children can get in and get to the nearest classroom in *seconds*.
The magical piece of paper won’t do diddly squat.
And the “lockdown” procedure most schools implement (if not all) these days ensures that any kids who stay in their classrooms (or in the closets within their classrooms!) are proverbial fish in a barrel when the psychopath breaks in.
Apparently the principal was still feeling sore from his meeting with Momma on Wednesday and her failure to sign the magic piece of paper was the last straw for him. He saw a moment to retaliate and took it.