Key legal question
Whether Aargau authorities could determine the heir’s liability for the claimed tax penalty.
Extracted holding
Yes. The claim was a public-law tax penalty, and the competent authorities were those of the canton whose law governed it.
Extracted reasoning
Such claims are not ordinary civil debts but public-law penalty claims based on state sovereignty; therefore Art. 59 BV does not make them personal claims to be sued only at the defendant’s domicile.