[sarchertech]

If augmented reality glasses advance to the point where you can’t easily tell from a distance, then make the students hand them over for a close inspection.

If we get to the point where even that doesn’t work then we’ll be at the point where a camera in the room with an AI analyzing eye movements should be able to detect it. And no matter how advanced they get they’ll still need to radiate heat, so a thermal camera should work. If that fails, industrial CT scanners are getting cheaper and cheaper.

Heck if it gets too bad there’s always mm wave body scanners and a set of cheap glasses kept at school.

[walrus01]

About 95% joking, but in that case, have everyone lock their phones in a tiny locker shelf thing and wand everyone with a nonlinear junction detector. If we get to the point in technology and battery capability where camera glasses are compact enough to be indistinguishable from ordinary metal eyeglass frames, we'll probably also have really good low cost portable tech to detect any on-body electronics (vs the flesh and clothing and metal accessories like belt buckles on a human body).