According the Art.10A of Special Intelligence Means a controlled delivery shall be performed by an intelligence body and shall be used by an investigating or body within the limits of their competence in the presence of uninterrupted strict control on the territory of the Republic of Bulgaria or another country within the context of international cooperation, during which a controlled individuals shall be import, export, carry or effect transit transportation through the territory of the Republic of Bulgaria of an object of a criminal offence, with view of detecting those involved in trans-border crime.
The measure is aplicable only for investigation of serious premeditated crime, explicitly listed in article 172 (2) of the Bulgarian Criminal code of procedure (felonies punishable over 5 years imprisonment) under conditions, where international agreement has been concluded to which the Republic of Bulgaria is party. MLA request or EIO (Annex A of EIO DIR) of judicial authority is necessary to be issued for this international cooperation and competent to allow such measure is the Chairman of respective district or military court .