yeah they did it at my high school a few times the headmaster comes on the speaker and says all teachers lock your doors dont let anyone out or in and then the dogs come they never found any pot but a few dogs did find some ones lunch

if you carry in school dont put it in a locker thats a stupid place to put anything illegal the school dosent need a warrant to search it cause its there property also i heard they can search your car if you park it in there parking lot

also when i was in junior high every time this one kid came to school smelling like pot we had a clean out your lockers day where you would have to clean your locker and let the teacher take a look to make sure its not messy i pretty sure they were looking for drugs cause it was only when that kid smelled