https://www.fedcourt.gov.au/going-to-court/jury/faqs?utm_source=chatgpt.com

Expectations of jurors
Are jurors required to be experts on the law?

You are not required to be an expert on the law or to have any other area of special knowledge.

You have been selected at random to be a juror for the purpose of bringing with you the range of knowledge and skills you have as a member of the general community.

The Trial Judge will assist the jury by giving directions on the law. A jury must comply with directions given by the Trial Judge.
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https://www.ruleoflaw.org.au/crime/criminal-trial-processes/the-role-of-juries/

“The community receives important… benefits from a trial by jury in the involvement of the public in the administration of justice and in keeping the law in touch with the community standards.”

– Justice Yehia at R v White NSWSC 1369

The judge gives the jury directions: The presiding judge provides jurors with legal instructions to ensure they focus on evidence in the trial and apply legal principles correctly. Before deliberations begin, the judge also gives the jury a “summing up” to explain the law and instruct jurors on their responsibilities. This process aims to minimise errors or unfair verdicts. To ensure consistency, the script for judges for these instructions are given in the “Bench Book,” a guide containing all required procedures that judges must follow to ensure equality and fairness in court.