Questione giuridica chiave
Whether the appeal against the detention order was still live after the appellant's departure from Switzerland.
Decisione estratta
The appeal had become moot because the appellant had already left Switzerland; the court took note and struck the case from the docket.
Motivazione estratta
Once the detention measure no longer affected the appellant due to his departure and readmission by France, there was no longer a subject matter for judicial review.