Earlier quoted context omitted.
What's the purpose of this law? (I would normally expect opposite -- that it is illegal for you to hire them if you can't afford it.)
Perhaps you misunderstood me, so let me state it another way: you must pay people who work for you, even if their title is "intern." To do otherwise circumvents the minimum wage laws.
It's a common dodge in Australia to put people on as "trainees". I think it can be illegal if they aren't really being trained, and there's lots of other rules (like it must be an educational course requirement).