Paragraph 40 Spoilt ballot papers

A voter who has inadvertently dealt with his ballot paper in such manner that it cannot be conveniently used as a ballot paper may, on delivering it to the presiding officer and proving to his satisfaction the fact of the inadvertence, obtain another ballot paper in the place of the ballot paper so delivered (in these Rules referred to as “a spoilt ballot paper”), and the spoilt ballot paper must be immediately cancelled.