6. After section 7 of the Principal Act the following section is inserted:
“7A. (1) Before the expiry of the term of office of a member, the Executive may, by instrument, extend the term for a specified period.
“(2) Before the expiry of a term of office of a member which has been extended under subsection (1) or this subsection, the Executive may, by instrument, further extend the term for a specified period.
“(3) This section does not authorise the Executive to extend or to extend further the term of office of a member who could not be appointed for that term under section 7.”.