Article 50- Extension of the defendant’s rights to the defense counsel

2. The defense counsel has the right to communicate freely and one to one with the person detained, arrested or convicted, to have prior notice of the investigative actions conducted in the presence of the defendant and to participate in them, to ask questions to the defendant, witnesses and experts, to have access to all the materials of the case at the conclusion of the investigations.

Article 67
Rights of the accused
1. In the determination of any charge, the accused shall be entitled to a public hearing, having regard to the provisions of this Statute, to a fair hearing conducted impartially, and to the following minimum guarantees, in full equality:
(b) To have adequate time and facilities for the preparation of the defence and to communicate freely with counsel of the accused's choosing in confidence