The purpose of this Act is to help secure the just determination of proceedings by—
(a) providing for facts to be established by the application of logical rules; and
(b) providing rules of evidence that recognise the importance of the rights affirmed by the New Zealand Bill of Rights Act 1990; and
(c) promoting fairness to parties and witnesses; and
(d) protecting rights of confidentiality and other important public interests; and
(e) avoiding unjustifiable expense and delay; and
(f) enhancing access to the law of evidence.