Questione giuridica chiave
Whether the cantonal courts violated the principle of in dubio pro reo by rejecting a technical brake-failure defense without further expert evidence.
Decisione estratta
No constitutional violation: the cantonal courts could reasonably rely on the police expert report and the other evidence, and the complaint remained largely appellatory.
Motivazione estratta
The Federal Court held that the complainant did not show any manifest error in the cantonal reasoning. The technical-failure hypothesis was unsupported and implausible, while the police expert had examined both the vehicle’s appearance and its functioning.