Interesting court case here this week. A chap arrested with a leatherman in his briefcase got off by showing he used it regularily. Apparently locking blades are illegal if carried without good reason. He said he opened envelopes etc all the time. He even got off with a telescopic baton in the briefcase he said his children had put in their afer playing with it and he hadn't realised. A weapon is completely illegal in a public place here. Course he was a middle aged respectable company director which probably helped.