8. A child restraint shall be regarded as provided for a seat for the purposes of this Schedule if—
(a)it is fixed in such a position that it can be worn by an occupier of that seat, or
(b)it is elsewhere in or on the vehicle but—
(i)it could readily be fixed in such a position without the aid of tools, and
(ii)it is not being worn by a child for whom it is appropriate and who is occupying another seat.