Dear Intern,

To fulfil our 2022 risk assessment strategy, our team is required to investigate whether all aspects of CTB's new AR software - Change Room 3.0 - comply with Australian laws and regulations. Since you are currently studying 'LAW101' at university, we would like you to tackle some preliminary questions concerning the legal and regulatory context of this software. To this end, we require thorough answers to the following question.

(a) The role of the judiciary and case law within the Australian legal system;

(b) The circumstances in which a decision of an Australian court will be considered to form a binding precedent, commenting on whether the NZ decision described above would be considered relevant to Australian law; and

(c) Whether all parts of a judge's written decision are considered binding law?