9Application of common law and equity

9 Application of common law and equity (1) This Act does not affect the operation of a principle or rule of common law or equity in relation to evidence in a proceeding to which this Act applies, except so far as this Act provides otherwise expressly or by necessary intendment. (2) Without limiting subsection (1), this Act does not affect the operation of such a principle or rule so far as it relates to any of the following— (a) admission or use of evidence of reasons for a decision of a member of a jury, or of the deliberations of a member of a jury in relation to such a decision, in a proceeding by way of appeal from a judgment, decree, order or sentence of a court; (b) the operation of a legal or evidential presumption that is not inconsistent with this Act; (c) a court's power to dispense with the operation of a rule of evidence or procedure in an interlocutory proceeding. This section differs from section 9 of the Commonwealth Act. That section preserves the written and unwritten laws of States and Territories in relation to various matters.