Key legal question
Whether Grisons tax authorities had to verify that the newcomers were actually subject to their tax sovereignty before taxing them.
Extracted holding
Yes. Before imposing taxes on a newcomer from another canton, the tax authorities must determine whether the person is in fact subject to their tax sovereignty.
Extracted reasoning
The court held that the authorities could not simply levy the tax without first establishing tax jurisdiction. In the case of workers arriving from Ticino, especially seasonal laborers, the authorities knew that taxation was only possible if they had domiciled in Grisons. Davos had not made that verification.