Power of Committee to appoint sub-committees.

A committee may by resolution appoint such sub-committees as it may think fit, and may delegate to them such powers and duties as it specifies in the resolution; and a committee or sub-committee may associate with itself, generally or for any particular purpose, in such manner as may be determined by regulations, any person who is not a member, but whose assistance or advice it may desire ; and the person associated as aforesaid shall have the right to take part in the discussions of the committee or sub-committee, relevant to that purpose, but shall not have the right to vote at any meeting thereof.