Questione giuridica chiave
Whether the appeal could be entered into without the challenged detention decision being filed after a court deadline.
Decisione estratta
No. The appellant failed to cure the formal defect, so the court could not examine the merits and had to decline entry in simplified procedure.
Motivazione estratta
After the court asked for the missing decision under Art. 42(5) BGG, the correspondence could not be delivered because the appellant had left without giving a new address. It was his duty to ensure he remained reachable for service; the Federal Supreme Court was not required to search for an unknown whereabouts.