Questão jurídica principal
Whether the cantonal appeal court exceeded its review powers and had to hold an oral hearing.
Decisão extraída
The appeal court could review whether the first-instance findings raised serious doubts and, given the file and prior examination, a written procedure was permissible.
Fundamentação extraída
The first instance had relied almost exclusively on the defendant's account and insufficiently weighed the advertising content; the written appeal procedure did not violate fair-trial or hearing rights because the defendant had already been examined in detail.