i mean, let's be real, when you folks "stop and frisk" there is at least then some statistical argument you're making that you're trying to interdict something that actually happens at the place it happens. setting aside racism, probable cause, and constitutional rights. i am pretty sure that if we statistically profiled it there is zero historical instance of people feigning jogging on a track to commit mischief or murder.
sorry but at this nth degree this is performative, like the campus police kicking one of the college's best soccer players off the soccer field because maybe once a month a townie tries to use the field.
if you want to deal with the actual problems, it's guns, bullying, mental health. the general pattern is it's rare some outsider does a school shooting.