Immigration police popped a surprise on Sukhumvit Soi 3 on Monday night by conducting on-the-spot drug tests with 33 randomly selected foreigners, 16 of which tested positive, Nation Channel reported.
Deputy Commissioner of the Immigration Bureau Lt. Col. Sittipan Loganpai and his team conducted the random urine tests around midnight in an area of Bangkok popular with Middle Eastern and South Asian tourists and expats.
The mission was part of a narcotics control campaign initiated by the Immigration Bureau, Lt. Col. Sittipan said.
Police also found one foreigner not carrying a passport and three others who had overstayed their permits to stay in the Kingdom. Immigration Police collected the evidence, including drug test results, for future investigation, Lt. Col. Sittipan said.
