2 The crime itself was a particularly serious one. Three other men met in the appellant's flat and together with the appellant, decided to invade the home of the complainant and to steal drugs and money believed to be there. The other men were older and one, the instigator and ringleader, physically stronger. That person appears to have been quite deranged and has not been brought to trial because of his mental condition. Neither of the other two men has been brought to trial. One of them, being known to the complainant who was selected as a victim because he was only 18 years of age and was regarded as weak, did not go to the scene of the crime, but the appellant and the other two did. All donned balaclavas to conceal their identity and the other two, to the knowledge of the appellant, armed themselves with knives and a wrench. Although prior to departure from the appellant's flat there is evidence that one of the other men spoke of scaring the complainant and robbing him, rather than of assaulting him, the three, on arrival at the victim's premises, burst in and the ringleader and the appellant each offered violence to him. He was stabbed with a knife by someone other than the appellant and suffered a penetrating injury to the abdomen, which had to be sutured. He received a fracture of the left elbow joint, which was fixed surgically with pins and wiring. He suffered abrasions to the face, a scalp wound and a superficial scratch on his abdomen.