Well I'm sure the OP has been stuck at home waiting to go back to uni for the last 14 months just waiting for you guys to reply.
I've heard of the police confiscating them from cars etc and sometimes doing the driver even though it seems perfectly reasonable to carry a multi tool in the glovebox. They don't see all the other tools, pliers etc on it, they just see the blade.
Op's in jail for attempting to repair a bicycle in public.