Kernrechtsfrage
Whether the cantonal judge had to recuse herself because of the content of the reformatio in peius warning and prior procedural steps.
Extrahierter Entscheid
No recusal was required; the warning remained within what was necessary for a possible worsening of the decision and did not create an objective appearance of bias.
Extrahierte Begründung
A reformatio in peius warning may include a preliminary assessment of the file. Although detailed and expressed in indicative form, the letter made clear it was only provisional. The lack of an express invitation to comment on the worsening ground did not amount to bias because the right to be heard followed directly from the statute.