Juries are not used in courts of summary jurisdiction, but in the District and Supreme courts they play an important role in criminal trials. In these trials, the jury (a group of twelve citizens drawn from the electoral roll) makes findings of fact from the evidence presented. The judge explains the relevant law and directs the jury members to reach a verdict by applying that law to the facts as they see them.
The defendant in trials for indictable offences can elect to be tried by either a jury or Judge alone.
See the sections on: The Role of Judge and Jury and Selection of the Jury.