Crackdown on Darknet Drug Trafficking: Czech Investigators Uncover More Than 2,400 Drug Transactions

The Czech security authorities have achieved a significant success in the fight against international drug trafficking on the darknet. More than 2,400 illegal drug transactions were documented across several investigations. A total of four suspects are being held in pre-trial detention.

The National Drug Headquarters of the Czech Police (NPC) and the Czech Customs Administration took action against three suspected drug dealers as part of the international operation ‘TORNADO’, coordinated by Europol. The suspects allegedly distributed narcotics to customers in the Czech Republic and abroad through various darknet marketplaces.

International cooperation enables investigating authorities to exchange information across borders about dealers, customers and other individuals involved in the illegal online drug trade.

Photo: Policie ČR

Suspected drug dealer active on the darknet for at least 13 years

In one of the largest cases, investigators from the National Drug Headquarters arrested a married couple in the Olomouc Region. The foreign national and his Czech wife are facing several drug-related charges.

The man allegedly sold psychotropic substances and drug precursors on various darknet marketplaces for at least 13 years under the pseudonyms ‘moominman’ and ‘b1g1mpact’. According to investigators' findings to date, he carried out around 1,326 transactions. His wife allegedly assisted him with logistics.

Photo: Policie ČR

Due to his long-standing activities, Europol had already classified the man as a ‘High Value Target’ (HVT) in 2021, meaning a particularly significant target of international investigations.

Operating from a small town in the Olomouc Region, the couple allegedly manufactured and processed various substances and distributed them exclusively to customers abroad.

According to investigators, payments made in cryptocurrencies amounted to the equivalent of more than CZK 5.5 million. The suspects also allegedly attempted to launder the proceeds from drug trafficking through their officially registered companies.

During the police operation, investigators seized several dozen kilograms of narcotics and psychotropic substances, including substantial quantities of the psychedelic substance dimethyltryptamine (DMT). Officers also seized a detached house worth CZK 6.5 million, cryptocurrencies worth CZK 280,000, as well as other assets and electronic devices.

Photo: Policie ČR

Customs authorities uncover more than 1,000 additional drug transactions

The Czech Customs Administration also concluded two extensive investigations into darknet drug dealers during 2026. In total, investigators documented 1,077 orders and sales transactions.

In late August, customs officers arrested a foreign national in Prague who had allegedly been dealing drugs under the pseudonym ‘WholeprodCZ’ since 2024. He is accused of carrying out at least 677 sales transactions involving a total of around 3.5 kilograms of narcotics, including cocaine, mephedrone, methamphetamine and ketamine.

Another foreign national was arrested in Brno in April. The suspected drug dealer, operating under the pseudonym ‘Dext3erLab’, allegedly processed around 400 orders between 2024 and 2026.

Photo: Policie ČR

According to investigators, he dealt in five kilograms of cocaine, one kilogram each of ketamine and MDMA, and several thousand units of other drugs. His proceeds from the illegal trade allegedly exceeded CZK 2 million.

All four suspects are being held in pre-trial detention. If convicted, they face prison sentences of five to twelve years.