Article explains that in Australia there is no right to privacy outlined in the Constitution and to enforce our rights we need to rely on a variety of different laws; cases and legislation made by the Commonwealth and state governments, which all vary.

https://www.news.com.au/technology/gadgets/cameras/sisters-in-law-help-my-neighbour-is-secretly-filming-me/news-story/0353a4a8d60735fe9a9550c0edcf66ed