Whether the conditions for administrative detention under Art. 76 para. 1 let. b ch. 3 and 4 LEtr were met.
Yes. His refusal to cooperate, declared unwillingness to leave Switzerland, and refusal to board the reserved flight showed a concrete risk of absconding.
The court treated the conduct as evidence that he would evade removal and would not obey authority instructions; the detention grounds may be assessed together.