Question juridique clé
Whether the residence permit had lapsed after the appellant stayed abroad for more than six months.
Solution extraite
Yes. Under the applicable law and settled case law, the permit lapses after six months' absence from Switzerland, irrespective of the reasons for departure or stay abroad.
Motifs extraits
The appellant was absent from Switzerland for years, far beyond the statutory six-month period. The case law he invoked about the centre of interests applies only to recurrent short absences returning before the six-month limit, which was not his situation.