Evidence (Miscellaneous Provisions) Act 1991

The functions of an intermediary appointed for a witness are to—

prepare and provide reports about the witness’s communication needs as required; and

at a hearing—

communicate to the witness questions put to the witness, to the extent necessary for the witness to understand the questions; and

communicate to the person putting questions to the witness, the witness’s answers to the questions, to the extent necessary for the person to understand the answers; and

otherwise assist the court, and any lawyer appearing in the proceeding, to communicate with the witness.

An intermediary appointed for a witness is an officer of the court and must act impartially when assisting communication with the witness.