PART III - FORMS OF MUTUAL ASSISTANCE
6. Procedure for an evidence-gathering order or a search warrant
(10) The Central Authority shall inform the foreign State of the date and place of the taking of evidence pursuant to this section.
(11) The Judge in Chambers may authorise the presence of representatives of the foreign State, and of parties to the relevant proceedings in the foreign State, at the proceedings under this section.
ICC privileges and immunities
International assistance in criminal matters
ICC investigation - national procedures
EDIT.