The decision confirms that a prosecutor's decision not to call a witness is justified where objective evidence clearly establishes the witness's unreliability, including evidence of the witness's likely involvement in the events and demonstrated dishonesty with police. The absence of such a witness does not occasion a miscarriage of justice where the witness remained available to the defence and the evidence, if given, would not have materially assisted the defence case. Prosecutor's submissions characterising what can be seen on poor-quality CCTV footage are permissible where they are open on the evidence, provided the jury is adequately directed that it is the sole arbiter of fact.
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