Questão jurídica principal
Whether new legal opinions and out-of-canton decisions constitute grounds for revision of the tax assessments
Decisão extraída
They do not constitute revision grounds; only new decisive facts or evidence, or overlooked decisive facts/evidence, can justify revision.
Fundamentação extraída
A new legal assessment, new case law, or criticism in scholarly publications is not a revision ground under the cantonal tax law; such materials merely support the taxpayer's legal view.