Question juridique clé
Whether the federal criminal appeal was admissible despite non-payment of the required advance on costs.
Solution extraite
The appeal was inadmissible because the appellant failed to pay the advance within the additional deadline set under Art. 62(3) LTF.
Motifs extraits
A party seizing the Federal Supreme Court must advance the presumed costs. If the amount is not paid within the supplementary deadline after an initial failure, the appeal is inadmissible under Art. 62(3) LTF and must be dismissed summarily under Art. 108(1)(a) LTF.