PART III
GENERAL PROVISIONS RELATING TO REQUESTS FOR ASSISTANCE
24. (1) This Part applies to a request by the ICC for assistance that is made under—
(a) Part 9 of the Statute, namely—
(vi) facilitating the voluntary appear¬ance of persons as witnesses or experts before the ICC;
Facilitating voluntary appearance of persons - authority - ICC proceedings
Facilitating voluntary appearance of persons - national procedures for ICC proceedings
EDIT.