In the beginning of the investigation police detained three Iranian citizens in Tbilisi for carrying drugs.
The Ministry of Internal Affairs says six bags of heroin were hidden in their footwear amounting to more than 1 kilogram.
Another three Iranians were detained after investigations in Tbilisi and Batumi who were found to have less than one kilogram of heroin in their possession: if convicted, all of them may face eight to 20 years of imprisonment.
According to official data, 18 kilograms of drugs were seized by police during the past four months all over the country. 750 people were charged with drug offenses during this time. 394 of them were charged with the illegal purchase, storage or distribution of large quantities of drugs.