You can get started here:

https://independentaustralia.net/australia/australia-display...

E.g. it does not explicitly outline the right to freedom of expression. It is sort of implied within Government, but not necessarily.

I don't know if it is related to the constitutional issue, but someone was convicted of having Simposons pornography because it pictured child characters from the show.

The UK, Canada, NZ etc. and otger countries (to a weaker extent) have similar laws. It is ridiculous in my view.