Section 8(1)(c) of the Evidence Act 1906 (WA) is confined to the failure of an accused to give evidence on oath or affirmation at trial; it does not extend to the failure to make statements in out-of-court police interviews. A prosecutor's breach of s 8(1)(c) does not necessarily constitute a serious breach of the presuppositions of a criminal trial precluding application of the proviso, particularly where the accused bore the onus on the only live issue, the breach was momentary, the trial judge gave correct directions on the right to silence, and experienced defence counsel did not object. An Edwards direction is not required where the prosecution does not contend a lie is evidence of guilt and there is no real danger the jury would so reason, even where the accused bears the onus of proof.
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