PART III - FORMS OF MUTUAL ASSISTANCE
8. Request for transfer of detained persons to Mauritius
(3) The Central Authority may, at any time, vary a notice issued under subsection (1), and where the foreign State, or the international criminal tribunal, agrees to the release of the person from custody, either immediately or on a specified date, the Central Authority shall direct that the person be released from custody accordingly.
Provisional arrest - release - ICC proceedings
EDIT.