Extradition and European Arrest Warrant Act
Chapter three - EXTRADITION PROCEDURE
Title I - Extradition at the request of another state
Article 18
(1) By virtue of the decision granting extradition the court may postpone the actual surrender of the requested person where criminal proceedings are pending in respect of him/her in the Republic of Bulgaria or a sentence has entered into force that is subject to enforcement, in respect of an offence, which is different from the one for which extradition has been requested.
(2) Where a postponement under para 1 may result in the expiry of the prescription period for prosecution in the requesting state or could seriously obstruct prosecution, the court may grant temporary extradition, provided the person is returned to the Republic of Bulgaria immediately after action in respect of which temporary extradition was granted has been taken.
Postponement of execution of ICC request
Postponement - ongoing investigation or prosecution
EDIT.