that the costs referred to in Article 55(1)(h) of the Rules of Procedure include the necessary and reasonable expenses that the victim or victims incur in order to have access to the supervisory bodies of the American Convention, and among such expenses are the fees of those who provide legal assistance. It is for the Court to estimate prudently the scope of the costs and expenses, considering the circumstances of the specific case, the nature of the international jurisdiction for the protection of human rights, and the characteristics of the respective procedure, which has particularities that are specific and different from those of other procedures of a national or international nature77. 127. This Court has already indicated that the concept of costs includes both the costs corresponding to access to justice at the national level and also those relating to justice at the international level before the Commission and the Court78. 128. The quantum for this item may be established, and this has been done in previous cases, based on the principle of fairness, even in the absence of elements of evidence regarding the precise amount of the expenses in which the parties have incurred, provided that the amounts respond to criteria of reasonableness and proportionality79. 129. To this end, the Court considers that it is fair to recognize to Gladys Oroza de Solón Romero, the victim’s mother, as reimbursement for the expenses generated in the domestic jurisdiction and in the inter-American jurisdiction, the amount of US$5,400.00 (five thousand four hundred United States dollars) and the amount of US$4,000.00 (four thousand United States dollars) to CEJIL, the representative of the victim and his next of kin. X METHOD OF COMPLIANCE Arguments of the representatives of the victim and his next of kin 130. The representatives of the victim and his next of kin requested the Court to order the State: a) to comply with the reparations, costs and expenses within six months of notification of the judgment on reparations; and b) that the payment of the compensation should be made directly to the victims or their adult next of kin or their heirs; that it should be in United States dollars, or in an equivalent cash amount, in Bolivian national currency – using the exchange rate between the Bolivian national currency and the United States dollar on the day preceding payment; that it should be exempt of any current or future tax; and that, should the State fall into arrears with 77 cf. Cantoral Benavides case. Reparations, supra note 3, para. 85; Cesti Hurtado case. Reparations, supra note 3, para. 71; and The “Street Children” case (Villagrán Morales et al.). Reparations, supra note 3, para. 107. 78 cf. Cantoral Benavides case. Reparations, supra note 3, para. 86; the case of the Mayagna (Sumo) Awas Tingni Community, supra note 5, para. 168; and Cesti Hurtado case. Reparations, supra note 3, para. 72. 79 The “White Van” case (Paniagua Morales et al.), supra note 4, para. 213. Similarly, cf. Cantoral Benavides case. Reparations, supra note 3, para. 87; the case of the Mayagna (Sumo) Awas Tingni Community, supra note 5, para. 169; and Cesti Hurtado case. Reparations, supra note 3, para. 73.