IV. EXERCISING THE JURISDICTION OF THE COURT
Article 8
(1) After receiving an official notification from the Prosecutor that, on the basis of notifications of the Security Council on criminal offences within the jurisdiction of the Court, or on his own initiative, he has initiated an investigation, the Ministry, on the basis of data from the competent national bodies, within one month of receipt of such a notification shall inform the Court that the Republic of Slovenia is carrying out or has carried out an investigation against its own citizens or other persons under its jurisdiction and request that the Prosecutor cede the investigation to the competent bodies of the Republic of Slovenia.
Proprio motu investigation
Referral by Security Council
EDIT.