@kristojackal said:
What if a person wants to spy on another person? Can he take his pictures in public without letting him notice? Isn’t that against the privacy law???
Generally speaking, in Australia you can take pictures of anything you like in a public place.
However, you can’t take pictures of a person in their private property.
Owners Corporations don’t have to post notices saying that they are filming people on common property (although they should have a by-law permitting them to do so) but they do have to put up notices warning tradespeople that they are being videoed. Why? Beats me!