A south London man has been sentenced to eight years in prison following his role in a dark web drug operation that distributed high-purity cocaine across the UK and internationally. The case brings to a close a multi-year investigation into the vendor known as “UKWhite,” which authorities linked to thousands of transactions and large-scale drug distribution over a sustained period.
The UKWhite Vendor
The vendor operated under the name “UKWhite” across multiple dark web marketplaces, offering cocaine in quantities ranging from small personal-use amounts to bulk orders of 100 grams or more. Starting over 5 years ago, the operation was estimated to have distributed more than 28 kilograms of high-purity cocaine over the last 14 months, generating significant illicit revenue.
The group relied on anonymising tools, encrypted communication, and cryptocurrency payments to manage transactions and obscure identities. Orders were fulfilled through postal services, with packages sent from London-based addresses to customers across the UK and overseas.
Individuals Involved
Helio Delfini, 43, of Rotherhithe Street in Southwark, admitted his role in the conspiracy and was sentenced on 17 April. He operated alongside Lucas Costa and Bruno Teles, who were previously convicted at trial.
Costa, 40, also of Rotherhithe Street, received a 14-year sentence, while Teles, 43, of Heather Road in Dollis Hill, was sentenced to 12 years. Both were found guilty of conspiracy to supply cocaine, along with additional offences relating to Class C substances, including diazepam, clonazolam, and flubromazolam.
Investigation and Arrests
The investigation began in 2020 and involved coordination between regional and international law enforcement agencies. Authorities state that extensive digital forensic work was used to trace activity connected to the UKWhite account back to the individuals involved, despite efforts to maintain anonymity.
In October 2021, warrants were carried out at addresses in London. During these searches, officers seized approximately 2.5 kilograms of cocaine, over 6,000 benzodiazepine tablets, packaging materials, an adapted suitcase, £17,440 in cash, and around £67,000 in cryptocurrency.
Court Proceedings and Timeline
Following the arrests and evidence gathering, the case progressed through the courts over several years. Delfini entered a guilty plea in March of the previous year, while Costa and Teles were convicted by a jury at Bristol Crown Court in February and sentenced shortly after. Delfini’s sentencing in April marks the final stage of the case, concluding proceedings against all three men linked to the UKWhite vendor account.
Official Statements
Investigators have described the operation as a sophisticated use of dark web infrastructure and global postal systems to facilitate drug supply. Detective Inspector Ross Flay stated that the case relied on detailed forensic and digital investigative work, alongside international cooperation, to identify those involved and shut down the vendor. Such statements reflect the position of the investigating authorities and their interpretation of how the operation functioned and was ultimately disrupted.
Conclusion
The UKWhite case outlines how the vendor account was allegedly used to coordinate large-scale drug distribution across borders using darknet marketplaces. With all three individuals now sentenced, the investigation has formally concluded, closing a case that spanned several years from initial inquiry to final sentencing.




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