We could metal detect and bag check at the doors, or we can pay a ton of money for a vision based system… what is with Americans fixations on cameras as the technical solution to every real world problem?
Gun detection is a solved problem. Even shopping malls and hotels in developing countries get this right.
Metal detection and bag checking requires a human at the entrance. With a camera you can automate the human away (at some cost to reliability and reasonability).
watch out for the students that have chemistry, and shop classes, they might just build a flintlock inside the school.
in my youth a number of fellow students constructed miniature crossbows, utilizing things issued by the school, and pilfered from the building. they could penetrate office dividers, and were tipped with exacto blades ! it was a badge of how "cool" you were.
It's pretty sad that we've come to this. What if we had nothing? Instead of treating students like criminals we treat them like complex humans and put the money into providing support and welfare for students?
My dad was in the gun club at his high school and brought a rifle to class regularly. It was fine. Guns aren't the problem.
Gun detection is a solved problem. Even shopping malls and hotels in developing countries get this right.