Questione giuridica chiave
Whether the federal criminal appeal was admissible against the instruction judge's refusal of visits and phone calls
Decisione estratta
The complaint was admissible in principle, but the federal proceedings became moot because the matter had to be dealt with first by the cantonal chamber of accusation.
Motivazione estratta
A detention-related restriction adopted for collusion reasons is not purely administrative; it falls within the cantonal review path applicable to detention decisions and must first be brought before the Chamber of Accusation.