As a professional locksmith I've done quit a bit of work at local schools both public and private.

Most schools are wide open. You can walk right in the front door unopposed. Some require you to be "buzzed" in.

These schools have the best hardware. The best doors. Safety glass and closers.

IMO, if schools were in a state of constant lock down requiring any and all visitors to use the front door and be "buzzed" in, we would not have these shootings.

It would take considerable effort to shoot your way in. And once inside it would take more effort to gain access to classrooms and office areas if the doors were locked. In accordance with fire and building codes all doors must open outwards for emergency egress. So a door that does not swing inward cannot be forced in. Shoot the lock off the door? Unlikely even with a rifle. That's why cops use a shotgun with slugs.

Special locks and door releases are available specifically for these situations but are expensive. Every lock in the school can be locked and every door can be closed with a push of a button. But school budgets make this an unlikely expense.

The bottom line is once the bad guy is in, it doesn't matter what we do. Whether you hide or fight, somebody is going to get hurt. But if you can slow the bad guy down significantly, maybe the cops can get there before someone gets hurt.

It's no different than keeping the bad guy out of your home. If he gets in and you don't have time to act, you're at his mercy. If he has any.

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