It would be the same as a beat officer arresting someone for carrying a back pack with a metal chain hanging from it, because afterall the chain could be used a s a deadly weapon.
Not quite; TESC Police Services couldn't
arrest you for possessing such a backpack, because they couldn't arrest you for carrying a firearm. They could, theoretically, instruct you to leave college property, and arrest you for trespassing if you fail to comply, or so I suspect.
But the TESC administration doesn't have its head
completely up its posterior; the student and employment codes don't prohibit everything that
might conceivably be used as a weapon, but rather, those items whose
primary function is as a weapon, such a firearms and certain blades. Things like Swiss army knives and Leathermen are okay, because they're not primarily intended (or designed) to be wielded against one's fellow human. Still, makes you wonder where things like machetes fall in the scheme of things. I mean, those
are primarily intended for clearing vegetation and the like, but as some 800,000 corpses in Rwanda can attest, they can be readily brought to bear against one's fellow man with lethal effect.