Where evidence of uncharged acts is admitted as context and relationship evidence in a criminal trial, the trial judge must direct the jury as to the specific and limited relevance of that evidence and must instruct the jury that it cannot be used as propensity evidence. Failure to give such a direction constitutes a misdirection that may occasion a miscarriage of justice, even where neither party raises the issue. The non-specific nature of the uncharged acts evidence and temporal distance from the charged offences do not avoid the risk of impermissible propensity reasoning.
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