Question juridique clé
Whether the subsidized constitutional complaint was admissible despite the potential availability of an appeal in public law matters.
Solution extraite
The public-law appeal was not available because the appellant gave no indication of the value in dispute or any principle question, but the subsidized constitutional complaint was admissible as to the refusal of a derogation.
Motifs extraits
The incompatibility declaration itself was not legally binding; the refusal of the derogation denied a legal entitlement and affected the appellant's legal interests.