Interpol documents show that two primary routes are used to smuggle heroin: the Balkan Route-- which runs through Southeastern Europe, and the Silk Route -- which runs through Central Asia.
Dokumenti Interpola pokazuju da se za krijumčarenje heroina koriste dva primarna puta: balkanski put, koji prolazi kroz Jugoistočnu Evropu i "put svile", koji prolazi kroz Centralnu Aziju.