Post-sentencing events such as COVID-19 pandemic hardship in custody do not establish error warranting appellate intervention; the review of a sentence in light of subsequent events is the province of the executive, not an appellate court. The parity principle may be invoked by reference to a co-offender sentence imposed after the applicant's sentence, even though no point of comparison existed at the time of the applicant's sentencing. There is an unresolved tension between this proposition and the Kentwell requirement that appellate intervention depends on the demonstration of error.
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