How can the division of law-making powers between Commonwealth and states be altered? (Australian Legal System)

When the founding fathers of our nation came together at the turn of the nineteenth century to establish the law-making capacities of both the federal and state governments, they had a definite vision that the majority of political activity should continue to be performed at state level. However, it is a usual feature of a federal system of government that the balance of law making powers will shift with time and this has definitely been …

…envisaged is distinctly unlike the system of government that exists today. Our federation is no longer a set of somewhat independent, almost self-sufficient, colonies. What happens in Broome or Cairns during the day will make Southern Cross News that evening. We have national newspapers and radio stations. There has been a definite shift in the balance of law-making powers over the past century, which reflects the national (and global) society within which we now live.