I’m fairly certain it’s still the case that you can’t be compelled to incriminate yourself in a court. Of course you have clearly unjust laws like those concerning the Building/Construction Commission in which an ad hoc court can compel you to give evidence against yourself, but this is an abberation which has not had the opportunity to be challenged in the High Court AFAIK, and it will likely be abolished when Labor comes back into power.

“Section 6DD of the Act provides that, where a witness is compelled by a summons to give evidence to the Royal Commission, that evidence isn’t admissible against a natural person in any civil or criminal proceedings in any court of the Commonwealth, or of a state or territory. It is, however, admissible against a corporation. ”

However, evidential immunity under s 6DD doesn’t protect clients (who have been compelled to give evidence to the Royal Commission) from a regulator, such as ASIC, using their evidence as a springboard to gather secondary or derivative evidence, and using that derivative evidence against them.