https://www.sciencedaily.com/releases/2022/09/220920115606.htm

The drop in average test scores and college enrollment persists even for students who haven't been suspended, suggesting the consequences of surveillance intended for students perceived as troublesome spills over into the educational experience of all students. The findings, in one of the first studies to measure the effects of school surveillance on educational outcomes, suggests negative implications as school systems nationwide further bulk up security in the wake of the Uvalde, Texas, mass shooting.

"When schools feel like prisons, the impact isn't localized to the students perceived as problematic -- it has collateral consequences for kids irrespective of their behavior," says author Odis Johnson, a Bloomberg Distinguished Professor of Social Policy and STEM Equity. "We're suggesting there is a safety tax that all students pay in those schools."