Alterations of, or additions to, a petition may be made by amendment and a petition may be amended by adding an additional or substituted prayer, for instance, to make stronger allegations of behaviour so as to convince a court to grant a decree. The rules regarding amending petitions are set out in the Family Procedure Rules 2010 (FPR 2010), SI 2010/2955, Pt 7 and the supporting practice direction FPR 2010, PD 7A. FPR 2010, PD 7A, para 1.3 states that ‘amended and supplemental applications operate on a principle of relation back to the date of issue of the original application’. For that reason, if a separation petition is presented within one year of the marriage or civil partnership, it cannot be amended to a divorce