"So in a sense they are not offensive per se. They are not weapons which have been designed to hurt or cause serious injury. Of course you have to consider whether they were in fact offensive at the time and the test is whether they are capable of causing injury. Are those items that you see, and I say 'those' but it is actually one item linked together, is it capable of causing injury because if you are sure that it is capable of causing injury then it is an offensive weapon. The decision, however, has to be yours. You heard [counsel for the prosecution] make the point that if these were just rubber versions of the same thing then probably you would have no difficulty in finding that they were not offensive because rubbery items are probably unlikely to cause serious injury. But the test here is whether they were capable of causing injury and if you find that they were capable of causing injury then it is an offensive weapon so that element has been proved by the prosecution."
"In this section 'offensive weapon' means any article made or adapted for use for causing injury to the person or intended by the person having it with him for such use by him or by some other person."
"Is it capable of causing injury?"