Regina v Dizaei [2013] EWCA Crim 88; [2013] WLR (D) 64
“When a court was assessing the probative value of the evidence of bad character of a witness in criminal proceedings, in accordance with the provisions of section 100 of the Criminal Justice Act 2003, among the factors relevant to the admissibility judgment, the court should consider whether the admission of such evidence might make it difficult for the jury to understand the remainder of the evidence, and whether its understanding of the case as a whole might be diminished. If the conclusion was that the evidence was not of substantial probative value in establishing propensity or lack of creditworthiness of the witness, or that the evidence was not of substantial importance in the context of the case as a whole, or both, the preconditions to admissibility would not established.”
WLR Daily, 14th February 2013
Source: www.iclr.co.uk