If I understand correctly, the accused person would only be there if the tribunal determined that they did in fact retaliate, so that they could be forced to face what happened. Otherwise, the victim wouldn't be able to tell them what they went through because of what they did to them. The tribunal may well impose little or no penalties on the accused person, but it's important that the victim be able to tell the person who retaliated what consequences their actions had on their life. That can't happen if the person who has retaliated isn't present at the tribunal.
I would go to a vote on this, because we may not agree again.