Key legal question
Whether the conviction violated the presumption of innocence by shifting the burden of proof
Extracted holding
The cantonal court did not convict because the accused failed to prove his innocence; it relied on a coherent set of indicia established by the prosecution.
Extracted reasoning
The federal court found no objective sign that the burden of proof had been reversed. The lower court inferred guilt from the noise, the immediate damage observed, the implausibility of alternative causes, and the accused's footwear.