Key legal question
Whether Art. 3 of the Federal Act on the civil-law relations of settled and resident persons applies to public-law police control of residence and domicile.
Extracted holding
No. The statute governs only certain civil-law relations; its domicile definition does not apply directly to public-law matters such as police regulation of residence and settlement or tax liability.
Extracted reasoning
The Court emphasized the title and Art. 1 of the Act: it regulates persons-, family- and inheritance-law effects of cantonal civil law. Art. 3 is only relevant where a civil-law relationship governed by the Act is in issue. It therefore cannot be invoked as an independent basis against police residence control.