"head"

of, or in relation to, a private body means—

(a)in the case of a natural person, that natural person or any person duly authorised by that natural person;
(b)in the case of a partnership, any partner of the partnership or any person duly authorised by the partnership;
(c)in the case of a juristic person—
(i)the chief executive officer or equivalent officer of the juristic person or any person duly authorised by that officer; or
(ii)the person who is acting as such or any person duly authorised by such acting person;