Question juridique clé
Whether the federal appeal met the LTF motivation requirements and was therefore admissible.
Solution extraite
The appeal was inadmissible because it was not sufficiently reasoned within the appeal period, and the late supplementary brief could not be accepted.
Motifs extraits
Under Arts. 42 and 106 LTF, the appellant had to explain succinctly why the challenged decision violated the law. The initial filing was unmotivated, and the later supplement was filed out of time. The cited reasons did not justify restoration of the deadline under Art. 50 LTF, and in any event the supplement still failed to engage with the cantonal court's reasoning.