The general rapporteur may decide to call in experts in the event of a request made at any time during the investigation by the rapporteur or a party. This decision is not subject to appeal.
The expert’s mission and the time limit given to him are specified in the decision appointing him. The expert appraisal shall be carried out in an adversarial manner.
The cost of the expert appraisal shall be borne by the party requesting it or by the Board in the event that it is ordered at the request of the rapporteur. However, the Council may, in its decision on the merits, place the final burden on the sanctioned party or parties in proportions that it shall determine.