Questão jurídica principal
Whether the federal criminal appeal was sufficiently reasoned when the appellant challenged only one of two independent grounds for acquittal.
Decisão extraída
The appeal was not sufficiently reasoned because the prosecution failed to contest the alternative ground that no negligence was established.
Fundamentação extraída
Under Art. 42(2) BGG, a party must explain specifically why the challenged decision violates law. If the judgment rests on multiple independent grounds, each sufficient on its own, every ground must be attacked; otherwise the Federal Supreme Court cannot enter the appeal.