(1) The referendum roll and the supplementary referendum roll must not be printed or made available for purchase or public inspection in any form.
(2) Every person who has a copy of the referendum roll or the supplementary referendum roll must, as soon as practicable after the declaration of the result of the referendum under section 46,—
(a) Erase from any computer tape, disk, or diskette held by that person, and delete from any electronic system used by that person, any copy of the whole or any part of the referendum roll and the supplementary referendum roll and any mark made under sections 24(6), 32(3)(b), 33(5), or 40(2)(b); and
(b) Make a declaration to the Chief Registrar in the prescribed form that he or she has complied with paragraph (a).