For the purposes of its investigation the Board or an investigating committee may—
| (a) | by written notice summon a person who in its opinion has information which is material to the investigation to appear before the Board or the committee— |
| (ii) | to produce a document available to that person and specified in the summons; |
| (b) | call a person present at a Board or committee meeting, whether summoned or not— |
| (i) | to give evidence before the Board or committee; or |
| (ii) | to produce a document in that person's custody; |
| (c) | administer an oath or solemn affirmation to that person; |
| (d) | question that person, or have such a person questioned by a person designated by the Board or committee; and |
| (e) | retain for a reasonable period a document produced in terms of paragraph (a)(ii) or (b)(ii). |
