Questão jurídica principal
Whether the appellant still had a right to renewal of the residence permit under Art. 7 LDDS despite separation from the Swiss spouse.
Decisão extraída
No; the marriage had become purely formal and the appellant invoked it abusively to continue residing in Switzerland.
Fundamentação extraída
Art. 7 LDDS protects genuine spousal family life, not a formally existing but substantively hollow marriage. The evidence showed long-term separation, no resumed common life, and autonomous lives.