Question juridique clé
Whether the Federal Court has jurisdiction over a complaint against a costs order issued in supervisory complaint proceedings.
Solution extraite
Yes. The costs order is a public-law decision under Art. 82 lit. a BGG and is not excluded by Art. 83 BGG.
Motifs extraits
The costs order conclusively and coercively affects the complainant's rights and obligations. Supervisory-complaint decisions are not listed among the exclusions in Art. 83 BGG, so the resulting costs decision remains challengeable.