If the law applied by the competent court or authority obliges the parties to secure evidence and the competent court or authority is not able itself to execute the letters rogatory, that court or authority may, with the consent of the European Patent Office, appoint a suitable person to do so. When seeking such consent, the competent court or authority shall indicate the approximate costs which would result from this procedure. If the European Patent Office gives its consent, the Organisation shall reimburse any costs incurred; otherwise, the Organisation shall not be liable for such costs.