In any civil proceedings a statement other than one made by a person while giving oral evidence in those proceedings shall be admissible as evidence of any fact stated therein to the extent that it is so admissible by virtue of any provision of this Part of this Act or by virtue of any other statutory provision or by agreement of the parties, but not otherwise.

In this section “statutory provision ” means any provision contained in, or in an instrument made under, this or any other Act, including any Act passed after this Act.