Key legal question
Whether the continued security detention was justified by collusion risk after the investigation had closed.
Extracted holding
Yes. Concrete indications showed that the defendant could still influence witnesses, co-accused, or evidence, so detention on collusion grounds remained lawful.
Extracted reasoning
The court relied on the defendant's non-confession, conflicting statements, prior attempts to influence others, aggressive conduct, contacts with co-accused, and the milieu involved. Closure of the investigation did not eliminate collusion risk where the trial still required witness examination.