Power of appeal tribunal to summon witnesses

(1) An appeal tribunal shall have the power to summon witnesses and to require the production of such documents as the chairman may consider necessary for the consideration of any question or claim before the tribunal and to administer oaths. Social Security 179 (2) Summons to a person to give evidence before an appeal tribunal shall be signed by the chairman of that tribunal. (3) Oaths shall be administered by the chairman of the