This paper is the third in a series of three papers that are intended to serve as an introduction to the jury system as it currently operates in Australia. The first two papers deal with the incidence of jury trials and the composition of juries. This paper deals with the jury's role (i.e. what do juries do and how do they do it?). Topics covered include the distinction between questions of law and questions of fact, the standard of proof which a jury must apply, judges' directions regarding the role of the jury, general and special verdicts, appeals of jury verdicts, the principle of unanimity, majority verdicts, questions of fact in sentencing, and the confidentiality of juror identity and jury deliberations. Although published separately, the intention was that all three papers be read together.