xmlns:atom="http://www.w3.org/2005/Atom"
23. The appointed person may—
(a)by notice in writing require—
(i)a person to attend a hearing, at a time and place stated in the notice, to give evidence;
(ii)a person to produce any documents, books or other data in the custody or under the control of the person which relate to any matter in question at the hearing; and
(b)take evidence on oath, and for that purpose administer oaths.