A/RES/58/253 25. Requests the Secretary-General to continue to reform the legal aid system, taking into account the recommendations contained in the comprehensive report or other reforms deemed more appropriate by the Tribunal, as a top priority, and to report on the implementation and consequent savings in defence costs in his performance report for the biennium 2004–2005; 26. Decides that a vacancy rate of 18.2 per cent for Professional staff and 9.7 per cent for General Service staff shall be used as a basis for the calculation of the budget for the biennium 2004–2005; 27. Recalls paragraph 3 of its resolution 57/289, in which it urged the SecretaryGeneral to request the Office of Internal Oversight Services to conduct a management review of the Office of the former Prosecutor, and requests the Secretary-General to submit the report on the matter to the General Assembly no later than at its resumed fifty-eighth session; 28. Decides to appropriate to the Special Account for the International Criminal Tribunal for the Prosecution of Persons Responsible for Genocide and Other Serious Violations of International Humanitarian Law Committed in the Territory of Rwanda and Rwandan Citizens Responsible for Genocide and Other Such Violations Committed in the Territory of Neighbouring States between 1 January and 31 December 1994 the total amount of 235,324,200 United States dollars for the biennium 2004–2005, as detailed in the annex to the present resolution; 29. Decides also that the total assessment for 2004 under the Special Account, amounting to 122,179,200 dollars, shall consist of: (a) 117,662,100 dollars, being half of the estimated appropriation approved for the biennium 2004–2005; (b) 4,517,100 dollars, being the increase in the final appropriation for the biennium 2002–2003 approved by the General Assembly in its resolution 58/252 of 23 December 2003; 30. Decides further to apportion the amount of 61,089,600 dollars, being half of the total assessment for 2004, among Member States in accordance with the rates of assessment applicable to the regular budget of the United Nations for 2004, as set out in its resolution 58/1 B of 23 December 2003; 31. Decides to apportion the amount of 61,089,600 dollars, being half of the total assessment for 2004, among Member States in accordance with the rates of assessment applicable to peacekeeping operations for 2004; 32. Decides also that, in accordance with the provisions of its resolution 973 (X) of 15 December 1955, there shall be set off against the apportionment among Member States, as provided for in paragraphs 30 and 31 above, the amount of 11,149,250 dollars, consisting of: (a) 11,024,350 dollars, being half of the estimated staff assessment income approved for the Tribunal for the biennium 2004–2005; (b) 124,900 dollars, being the increase in staff assessment income for the biennium 2002–2003 approved by the General Assembly in its resolution 58/252 of 23 December 2003. 79th plenary meeting 23 December 2003 4