70.This section sets out that tribunal rules will cover giving evidence and administering oaths. Tribunal rules will also provide for the payment of expenses to persons giving evidence in certain circumstances. Rules might also, for example, state that a document which had been posted to a person would be presumed to have been duly served on that person, unless the contrary was proved. Tribunal rules may also make provisions relating to decisions of the Tax Tribunals, including how decisions are made, the incorporation of findings of fact, the recording of, issuing of and publication of such decisions.