17. The state of Mr. Ngirumpatse’s health and his prognosis for recovery lie at the core of the Trial Chamber’s decision to deny the request for a further stay of proceedings and instead to sever him from the case. In refusing to order a further stay, the Trial Chamber dismissed as “highly speculative” Mr. Ngirumpatse’s claim that his health might sufficiently improve within three months to allow him to more actively participate in his defence from his hospital bed.[1] […]

18. Rule 82(B) of the Rules provides that a “Trial Chamber may order that persons accused jointly under Rule 48 be tried separately if it considers it necessary in order to avoid a conflict of interests that might cause serious prejudice to an accused, or to protect the interests of justice.” In severing Mr. Ngirumpatse, the Trial Chamber concluded principally that there was a conflict of interests among the Appellants as a result of the prejudice Mr. Karemera and Mr. Nzirorera would suffer if the proceedings were stayed until Mr. Ngirumpatse became fit to attend trial.[2] The Trial Chamber noted that, “according to the doctor’s assessment”, Mr. Ngirumpatse “will, in the best case, not be fit to attend trial before nine months.”[3] The Trial Chamber also considered the interests of justice, namely, the interests of the victims and the international community that trials concerning serious crimes be completed without unnecessary delays.[4] It also noted that severance “significantly serves judicial economy”.[5]

19. The Appeals Chamber notes that, in practice, Trial Chambers generally consider various professional opinions before taking an important procedural decision arising from an accused’s medical condition which may impact the course of a trial.[6] In this respect, Rule 74bis of the Tribunal’s Rules of Procedure and Evidence (“Rules”) expressly provides that “a Trial Chamber may, proprio motu or at the request of a party, order a medical […] examination of the accused.”

20. In the present case, the Trial Chamber relied exclusively on the assessment of the Tribunal’s Chief Medical Officer.[7] As a preliminary matter, the Appeals Chamber finds no merit in Mr. Nzirorera’s submission that the Trial Chamber erred in not requiring the Chief Medical Officer to take the oath prescribed for witnesses in Rule 90(B) of the Rules.[8] The Chief Medical Officer did not appear as a witness, rather, her assessment, like other information submitted by the witness protection or defence counsel management section, is akin to a submission under Rule 33(B) of the Rules.

22.     It is appropriate to take proper account of an assessment made by the Chief Medical Officer and, in some cases, to rely exclusively on it. However, the Appeals Chamber considers that particular care is warranted where, as here, the assessment is provisional and lacking in detail, is disputed by the parties, and plays a significant role in the Trial Chamber’s assessment of prejudice. The Appeals Chamber also observes that the Trial Chamber had no specific information concerning the nature of Mr. Ngirumpatse’s medical problem. While a Trial Chamber may adopt reasonable measures to protect the privacy interests of an accused, these measures cannot serve to deprive it of information essential to reaching an informed decision. In view of the foregoing, the Appeals Chamber finds that, in this instance, the Trial Chamber reached its conclusions on prejudice without having assessed all relevant factors. It therefore committed a discernible error in the exercise of its discretion. […]