644.    As to Tolimir’s argument that it was the Trial Chamber’s duty to consider mitigating circumstances proprio motu […] Rule 86(C) of the Rules provides that sentencing submissions shall be addressed during closing arguments. Rule 85(A)(vi) of the Rules provides that a trial chamber will consider any relevant information that may assist it in determining an appropriate sentence.[1] Appeal proceedings are not the appropriate forum to raise such matters for the first time.[2] Therefore, it was incumbent on Tolimir to identify mitigating circumstances on the trial record in his final brief or during closing arguments.[3] Tolimir’s arguments in this regard are therefore dismissed.