Yes, it is possible. Controlling a delivery means secret monitoring of consignments, if there is a reasonable suspicion that they contain drugs, psychotropic substances, precursors, poisons, radioactive material, forged money or securities, guns or weapons of mass destruction, ammunition and explosives or other things requiring a special license for their possession, items intended to be used to commit a crime and items derived from a crime. Czech authorities may arrange that such monitored consignments containing the above - referred dangerous items left / entered the territory of the Czech Republic (under the supervision of customs authorities). Czech authorities have the possibility to allow such consignment containing dangerous items to leave the state borders, if its control is resumed by competent foreign authorities.