Where the Crown charges aggravated burglary based on trespassory entry to a room within a house, it is sufficient to prove trespassory entry to the house itself; the trespass continues into the room where the same persons are in possession of the whole premises. A prosecutor's decision not to call an eyewitness is justified where there are identifiable circumstances clearly establishing unreliability, including evidence of attempts to interfere with other witnesses, and the failure to call such a witness does not result in a miscarriage of justice where the witness's evidence was favourable to the accused and could have been called by the defence.
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