Regina v Abbas and another: [2012] EWCA Crim 2517; [2012] WLR (D) 352
“Where the Crown alleged that the defendant was part of a joint enterprise involving the possession of an imitation firearm, proof of which depended upon the drawing of an inference, it was incumbent on a judge in summing up to identify the evidence of primary fact upon the basis of which, if it was accepted, a jury might infer knowledge and thus possession by the defendant as well as the principal.”
WLR Daily, 27th November 2012
Source: www.iclr.co.uk