An 'issuable question of guilt' does not of itself impugn the integrity of a guilty plea or mandate that a change of plea be permitted. An accused's subjective belief in innocence is capable of bearing upon whether a plea was a true admission of guilt, but is not determinative — a person may rationally plead guilty to a charge of which they believe themselves innocent. The applicable test remains simply whether a miscarriage of justice would occur if the plea was not withdrawn. The propositions in Kumar v The Queen suggesting a judge must consider whether the accused believed himself guilty may constitute an unwarranted qualification of that test.
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