Questione giuridica chiave
Whether the appeal met the formal requirements of Art. 42 BGG, including attachment of the challenged decision.
Decisione estratta
The appeal did not satisfy the mandatory formal requirements and the missing attachment was not cured within the deadline.
Motivazione estratta
The Federal Supreme Court had expressly warned of the defect under Art. 42 paras. 2 and 5 BGG and set a deadline for submission of the challenged decision; the appellant remained inactive.