Question juridique clé
Whether the appeal against the detention order still had a live object after the appellant left Switzerland.
Solution extraite
The appeal had become moot and no longer required a merits ruling.
Motifs extraits
The Service de la population informed the court that the detainee had left Switzerland on 2015-11-11 for Madrid. As the contested detention could no longer be reviewed in practice, the proceedings had lost their object and had to be stricken from the roll.