Fighting kotrabandoy narcotic drugs, psychotropic substances and potent Training handbook for operational staff and departments of inquiry customs / Borba s kotrabandoy narkoticheskikh sredstv, psikhotropnykh i silnodeystvuyushchikh veshchestv Uchebno-metodicheskoe posobie dlya operativnogo sostava i otdelov doznaniya tamozhennykh organov