"To prove that Mr K was acting in concert with Mr Jelly, in this case, the Crown has to prove first of all that a rape was committed by Mr Jelly. Not a penetration, but a rape, was committed by Mr Jelly. (2) That there was an agreement or understanding or arrangement between Mr K and Mr Jelly to commit that rape. And (3) That Mr K was a party to that agreement; and then, was present at the scene of the rape; if it is a rape, pursuant to that agreement, either helping or holding himself ready to help if called upon. That is what the Crown has to prove in order to prove that Mr K was acting in concert with Mr Jelly. The Crown puts it another way and says, all right, if he was not acting in concert with him, at least he was aiding and abetting Mr Jelly. And the law is that one who aids and abets another to commit a crime is himself guilty of that crime. Now aiding and abetting means doing one of three things while being aware that the crime is being committed. First of all, doing one or other of these three things. First of all, intentionally helping the other person to commit the crime. Or, secondly, intentionally encouraging the other person to commit the crime by words or by presence and behaviour; not by mere presence. Or thirdly, by intentionally conveying to the other person, by words or by presence and behaviour, an assent to and concurrence in that other person's commission of the crime. So, to prove Mr K guilty of Count 5 as on the basis of him aiding and abetting Mr Jelly, the Crown has to prove beyond reasonable doubt that Mr Jelly committed the crime of rape. (2) That Mr K was present during the commission of that crime. (3) That Mr K intentionally, not recklessly or carelessly or absentmindedly, but intentionally, either did an act, which helped Mr Jelly to commit the crime; or encouraged Mr Jelly to commit the crime. And that can be done by presence and behaviour, providing that the behaviour is intended to encourage Mr Jelly to commit the crime. Or, (3) By conveying to Mr Jelly his assent, his, Mr K's assent and concurrence in the commission of the crime; and again, such assent and concurrence may be conveyed by presence and behaviour, but not by mere presence; provided that the behaviour is intended to convey assent and concurrence to Mr Jelly. So the Crown has to prove each of these three things. (1) Mr Jelly committed the rape. (2) That Mr K aided and abetted him in the way that I have described. And (3) That Mr K intended to do whatever he did which amounted to aiding and abetting for the purpose of encouraging or concurring in the commission of that crime, and all of that has to be proved beyond reasonable doubt."