Yerevan criminal police detained two Armenian citizens and two foreigners on the capital’s Tsitsernakaberd highway at 16:30 on 3 October and took them to the department.[1] All four were later arrested, while the preliminary investigation continued.[1][2] They had been driving a Toyota and a Hyundai, and officers said one car held a mass resembling a narcotic drug.[1]

In the Toyota driven by a 31-year-old man, officers found more than 300 grams of a mass resembling marijuana.[1][2] In a hostel on Khanjyan Street in Yerevan, where a 37-year-old foreigner actually lived, officers found six packets containing about 760 grams of marijuana and electronic scales.[1][2] A personal search of a 31-year-old resident of Abovyan had found a glass tube bearing traces of soot.[1][2]

The operation was carried out by officers of the Yerevan Criminal Police Department’s anti-drug-trafficking unit acting on operative information about drug sales.[1] Both cars were sealed and placed in a specially guarded area.[1] A criminal case was opened, and court-authorised searches were carried out on 5 October.[1]