Royal Commissions Act 1902

Any legal practitioner appointed by the Attorney‑General to assist a Commission, any person authorised by a Commission to appear before it, or any legal practitioner authorised by a Commission to appear before it for the purpose of representing any person, may, so far as the Commission thinks proper, examine or cross‑examine any witness on any matter which the Commission deems relevant to the inquiry, and any witness so examined or cross‑examined shall have the same protection and be subject to the same liabilities as if examined by any of the Commissioners, or by the sole Commissioner, as the case may be.