Questione giuridica chiave
Whether the federal criminal appeal was admissible despite non-payment of the required advance on costs within the supplementary deadline.
Decisione estratta
The appeal could not be heard because the advance on costs was not paid by the supplementary deadline.
Motivazione estratta
Under Art. 62(3) LTF, failure to pay the advance within the supplementary period leads to non-entry. The notification of the supplementary order was deemed served under Art. 44(2) LTF before expiry of that period, even though the appellant requested postal retention.