When Dong Yuhui, a former English tutor at education and technology group New Oriental, first started to host live streams selling products on the company's Douyin channel, he noticed that often there were only five viewers, which included his parents and the parents of another host.

A 46-year-old English language teacher, who was allegedly operating an organic marijuana farm and selling it online, was arrested on Friday after a raid on a four-storey building on Din Daeng Road in Bangkok's Phayathai district.