Key legal question
Whether the conduct amounted to only a slight fault justifying a warning instead of a license withdrawal
Extracted holding
No. Driving with windows largely covered in frost created restricted visibility and a high accident risk, so the fault was not slight.
Extracted reasoning
The factual findings bound the Federal Court. In the cold, dark conditions, the remaining visibility could prevent timely reaction to pedestrians or other road users. The court approved the cantonal view that a warning was excluded.