Questione giuridica chiave
Whether the appeal was admissible despite being filed by fax instead of in a legally valid form.
Decisione estratta
Fax submissions to the Federal Supreme Court are inadmissible because appeals must be filed by hand delivery, post, or authenticated electronic signature.
Motivazione estratta
The law strictly requires filing in the prescribed forms; fax does not satisfy Art. 48(1) or Art. 42(4) BGG.