I don't know whether there are other bodies that have an appeal to the courts, but it seems to me that having such an appeal mechanism might in fact actively discourage frivolous and vexatious kinds of complaints being laid in the first place.
Je ne sais pas si d'autres organismes ont un mécanisme d'appel devant les tribunaux, mais il me semble que l'existence d'un tel mécanisme d'appel constituerait, en fait, un bon moyen de dissuasion face aux plaintes frivoles et vexatoires.