stored in secure boxes on campus, can be deployed within five seconds of silent panic buttons being activated

So much about that sentence doesn't make sense though...

"secure boxes" but "a button can open them" also "silent panic" with "drones out within 5 seconds"

In any event, the 'nonlethal' is generally considered a bad descriptor versus 'less than lethal', unless they are talking about something merely mildly annoying rather than the usual things like rubber or bag rounds.