Subject to this rule, the tribunal may admit as evidence a witness statement of a proposed witness supplied under rule 13(5)(c)(ii) or (9)(c)(ii), notwithstanding that the person is not to be called as a witness at the hearing.

Evidence is not admissible under this rule if it would not have been admissible had it been given orally.

For the purposes of this rule, a written statement purporting to be made and signed by a person and witnessed by another person must be presumed to have been made by that person unless the contrary is shown.

This rule does not affect the admissibility of written evidence which would be admissible apart from the provisions of this rule.