Evidence Act 2011

Evidence must not be presented if, on objection by a party who is not represented in the proceeding by a lawyer, the court finds that presenting the evidence would result in disclosure of—

a confidential communication between the party and someone else; or

the contents of a confidential document (whether delivered or not) that was prepared by or at the direction or request of the party;

for the dominant purpose of preparing for or conducting the proceeding.