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.
Fair trial standards
Rights during trial - free communication with counsel
EDIT.