VIII. REFUSAL OF CO-OPERATION AND DEFERMENT OF FULFILLING A REQUEST FOR CO-OPERATION
Article 20
(4) If the immediate fulfilment of a request of the Court in the Republic of Slovenia would obstruct a current investigation or prosecution of a matter which is not that to which the request refers, the Ministry, on the proposal of Supreme Court of the Republic of Slovenia or the State Prosecutor's Office of the Republic of Slovenia shall agree with the Court on the deferment of fulfilment.
Postponement - ongoing investigation or prosecution
EDIT.