The appellant was charged with robbery and using an imitation firearm.
The trial judge acquitted the appellant of robbery due to an error of law, but convicted him of the firearm offence.
A month later, at sentencing, the trial judge realized his error and changed the robbery acquittal to a conviction.
The Court of Appeal held that the trial judge was functus officio on the robbery count and had no jurisdiction to change the verdict.
Furthermore, the firearm conviction could not stand without a conviction on the underlying robbery charge.
The appeal was allowed and acquittals entered on both counts.