(1) The returning officer must—
(a) delete from a roll the name of any person who he or she reasonably believes will not, on election day, meet the criteria for voting in the election specified in section 139AD(2) of the Act; and
(b) add to a roll the name of any person who he or she reasonably believes meets, or will on election day meet, those criteria.
(2) The returning officer may amend a roll at any time up to election day.