It is necessary to choose a foreperson to communicate with the judge and to announce the verdict. Other than serving these roles, the foreperson has no higher status or different function than the other jurors (Ng v R (2003) 217 CLR 521 per Kirby J).
Depending on the nature of the case, consideration should be given to delaying the appointment of the foreperson until the jurors have had time to become acquainted. Allowing the jurors to appoint the foreperson within a reasonable time after empanelment – rather than always requiring this to be done at the outset of the trial – will facilitate the appointment of the most appropriate person.
The jury may change the foreperson during the course of the trial. The process of selection and change is private to the jury. The reasons should remain unknown to the judge, the parties and the community (Ng v R (2003) 217 CLR 521 per Kirby J; R v Lonsdale  VLR 269).
If more than 12 jurors have been empanelled and remain at the time at which the jury is required consider its verdict, and the foreperson is selected in the ballot to reduce the number of jurors to 12, that selection is to be disregarded and the foreperson is to remain on the jury (Juries Act 2000 s48(2)).