29. Every person attending the proceedings in connection with the issue or the receipt of ballot papers shall maintain and aid in maintaining the secrecy of the voting and shall not–
(a)except for some purpose authorised by law, communicate, before the poll is closed, to any person any information obtained at those proceedings as to the official mark; or
(b)except for some purpose authorised by law, communicate to any person at any time any information obtained at those proceedings as to the number on the back of the ballot paper sent to any person.