12. Amendment of petition
A petition which has been presented questioning a return or election other than upon an allegation of a corrupt practice or an illegal practice may, for the purpose of questioning the return or election upon an allegation of a corrupt practice or an illegal practice, be amended with the leave of the Court to be applied for on summons in the time within which a petition questioning the return upon the allegation of that corrupt practice or illegal practice can be presented under rule 6(2)(a) and 6(2)(b) of these Rules.