Question juridique clé
Whether the detention order met the reasoning requirements of Art. 112 BGG
Solution extraite
No. The cantonal order did not sufficiently state the facts and legal reasons supporting collusion risk, so federal review was not possible.
Motifs extraits
The order referred only generally to possible pressure on witnesses or coordination with accomplices, without identifying concrete persons or specific indications. Under Art. 112 Abs. 1 lit. b BGG, the decision had to enable review of the relevant facts and legal conclusions.