SECTION 4
When the International Criminal Court requests that a questioning is held with anyone whom there are grounds to believe has committed a crime that can be prosecuted at the Court, the prosecutor shall notify the person to be heard that the questioning will take place at the request of the International Criminal Court and that he or she:
4. is entitled to be heard in the presence of the defence counsel, unless the suspect voluntarily waives the right to the assistance of defence counsel.
Rights during investigation - questioned in presence of counsel
EDIT.