It is not true to say that, in Australia, the Prime Minister of the Commonwealth has the power to issue proclamations that have the force of law, known as ‘Commonwealth law’. Such powers are not given to the Prime Minister of the Commonwealth of Australia.
It is true that, in Australia, there are elected legislative bodies that have a constitutional power to enact new law, known as ‘legislation’.
It is also true that, in Australia, judges appointed to senior courts can create law when deciding cases, known as ‘case law’.
Although many countries have similar law-making mechanisms to those found in Australia, others have different structures of government which affect how law is made in those countries.