KOH SAMUI, THAILAND — Thai police arrested 27-year-old Russian national Semen Kasparian on 4 November on Koh Samui, ending a two-week manhunt that began after officers in Phuket discovered hundreds of QR stickers linked to an online drug platform.
The arrest on Koh Samui
Major General Chutharet Yingyongdamrongsakun, head of Immigration Region 6, confirmed that Kasparian was captured at a hotel on Chaweng Beach Road, where he had been hiding since early November. Officers raided the property following a warrant issued by a Phuket provincial judge on 2 November. According to Lieutenant Colonel Wichai Somporn of Koh Samui Police Station, the suspect tried to flee through a rear exit but was detained after a 40‑metre pursuit through the hotel’s parking area.
“WE WILL NOT ALLOW FOREIGN CRIMINALS TO TURN TOURIST ISLANDS INTO DIGITAL DRUG MARKETS,” declared Major General Phanumas Bunyalak, commander of Thailand’s Immigration Bureau, during a press conference at Surat Thani Provincial Headquarters.
QR codes advertising cocaine website
The investigation started when Phuket tourist police officers scanned QR codes from stickers found on Patong Beach electricity poles on 29 October. The codes led to a website called “THAIHUB”, which openly offered cocaine and other substances for cryptocurrency payment. Police technicians from Phuket’s Cyber Crime Division traced the activity to over 200 stickers placed across 15 tourist zones.
A digital warrant later connected image evidence on Kasparian’s mobile phone to those exact sticker locations. Photos stored on the device showed timestamps between 30 and 31 October and included payment confirmations in Tether (USDT) sent to his crypto wallet.
How the operation paid in cryptocurrency
During questioning at Bo Phut Police Station on 5 November, Kasparian told investigators that an anonymous employer contacted him via the encrypted Telegram app, sent him packages of adhesive flyers through a courier company in Phuket, and paid him 1 US dollar in USDT for each sticker placed. Within three days, he allegedly earned 300 USDT, corresponding to photos he had sent back to confirm his work.
“I ONLY DID WHAT THEY ASKED. I NEEDED MONEY,” Kasparian reportedly told interrogation officers led by Police Captain Prasert Chanthabun.
Expanding investigation into international network
According to Colonel Chutharet Yingyongdamrongsakun, police cyber‑units now focus on tracking the blockchain transactions linked to THAIHUB between 28 October and 3 November, aiming to identify the administrators behind the site. Investigators from the Royal Thai Police Narcotics Bureau have requested cooperation from Interpol Bangkok liaison officers to trace the QR marketing scheme, which may involve European‑based accounts.
Authorities seized one smartphone, two laptops, and more than 400 unused stickers from Kasparian’s hotel room. Samples of adhesive materials were sent to the Forensic Science Centre Region 8 for fingerprint analysis.
Officials call for stronger digital surveillance
At a briefing on 6 November in Phuket, General Major Phanumas Bunyalak said the arrest sends “A CLEAR SIGNAL THAT THAILAND WILL PURSUE ONLINE DRUG PROMOTERS ACROSS ALL TOURIST PROVINCES.” He confirmed that joint teams from Thailand’s Anti‑Narcotics Division and Immigration Bureau will expand street-level surveillance in Phuket, Koh Samui, and Pattaya during the upcoming holiday season.
Key facts established by investigators
– Semen Kasparian, Russian citizen, aged 27, arrested on 4 November in Koh Samui.
– Over 200 QR code stickers discovered across Phuket tourist areas.
– Payments in USDT cryptocurrency tracked for 300 transactions.
– Devices seized: two laptops, one phone, 400 stickers.
– Suspect faces multiple charges under Thailand’s Narcotics Act for drug promotion.
Thailand’s Office of the Attorney General confirmed that Kasparian remains in custody at Samui District Prison, pending formal indictment within 15 days. Police continue to search for the Telegram administrators who commissioned his work, arguing the case marks Thailand’s first detected instance of QR‑based narcotics advertising across multiple islands.