Question juridique clé
Whether the cantonal court had to hold a public oral hearing under Art. 30(3) BV.
Solution extraite
No general constitutional right to an oral public hearing exists under Art. 30(3) BV in tax matters; such a right arises only where EMRK Art. 6(1) applies or a rule expressly provides it.
Motifs extraits
Art. 30(3) BV only guarantees publicity when a hearing takes place. Tax disputes are outside Art. 6(1) EMRK, and no federal or cantonal rule granted such a hearing here.