10.—(1) On 6th May 1991 the number of persons representing the Chorleywood West ward on the Three Rivers District Council shall be increased from 2 to 3.
(2) Subject to paragraph (3) below, of the 2 councillors elected for that ward on the ordinary day of elections in 1991—
(a)the councillor elected by the smaller number of votes shall retire in 1992; and
(b)the other shall retire in 1995.
(3) If the election of councillors in 1991 is not contested, the councillor who is to retire in 1992 shall be determined by lot.
(4) Where such question is determined by lot, the lot shall be drawn at the next practicable meeting of the council after the question has arisen, and the drawing shall be conducted under the discretion of the person presiding at the meeting.