"An appeal is not a common law proceeding. It is a remedy given by statute (Attorney-General v. Sillem); Victorian Stevedoring and General Contracting Co. Pty. Ltd. and Meakes v. Dignan. The scope and effect of an appeal must in the end be governed by the terms of the enactment creating it. But the power given to the Quarter Sessions includes authority to quash and set aside convictions. These are familiar expressions and describe a jurisdiction exercisable at common law by Courts of error. The effect of the reversal of a conviction by proceedings in error has long been settled, and the same effect is produced by quashing it, or setting it aside upon a statutory appeal. The conviction is avoided ab initio. `The judgment reversed is the same as no judgment' (per Coleridge, J., R. v. Drury). If the conviction were alleged in a pleading, it would be a good answer that there was no such record (Dr. Drury's Case). It is `utterly defeated and annulled_'_ (Lord Sanchar's Case). Acts done according to the exigency of a judicial order afterwards reversed are protected: they are `acts done in the execution of justice, which are compulsive' (Dr. Drury's Case). And proceedings which, although based upon a judgment, are brought to completion before its reversal are not avoided. For `collateral acts executory are barred, but not collateral acts executed' (Dr. Drury's Case). But `upon the reversal of a judgment against any person convicted of any offence, the judgment, execution and all former proceedings become thereby absolutely null and void. If living, he (or if dead, his heir or personal representative, as the case may be) will be entitled to be restored to all things which he may have lost by such erroneous judgment and proceedings, and shall stand in every respect as if he had never been charged with the offence in respect of which judgment was pronounced against him' (Archbold's Criminal Pleading, Evidence and Practice, 21st ed. (1893), pp.226, 227)." (Footnotes omitted.)