Part One. General Provisions
Section III. Proof and Proving
Chapter 13. Measures of Restriction
Article 109. Time Terms for Holding in Custody
6. If after the end of the preliminary investigation the materials of the criminal case were presented to the accused and to his counsel for the defence later than thirty days prior to the end of the ultimate term for holding in custody, the accused shall be subject to an immediate release after this term expires. In this case, the accused and his counsel for the defence shall retain the right to get acquainted with the materials of the criminal case .
Provisional arrest - release - national proceedings
EDIT.