Question juridique clé
Whether the cantonal court established the facts concerning the service's characteristics arbitrarily and in violation of in dubio pro reo.
Solution extraite
The factual findings were not arbitrary; the challenge fails.
Motifs extraits
The website publicity supported the finding that the service warned users of police controls in real time. The file did not contain reliable verbatim witness statements contradicting this, and the lower court's comment that advertising exaggerated performance did not exclude effectiveness.