Extradition and European Arrest Warrant Act
Chapter three - EXTRADITION PROCEDURE
Title I - Extradition at the request of another state
Article 18
(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.
EDIT.