In a landmark move, the UK’s Serious Fraud Office (SFO) has announced it is launching a major criminal investigation into the collapse of what was advertised as a $28 million cryptocurrency hedge fund. The fallen project Basis Markets raised substantial funds from retail investors before abruptly shutting down.
This marks the SFO’s first major foray into crypto related enforcement. The arrests and investigation may signal a turning point for regulatory pressure on crypto investment schemes in the UK.
On 20 November 2025, SFO investigators, aided by the Metropolitan Police and West Yorkshire Police, executed coordinated raids on properties in London (Herne Hill) and near Bradford. Two men one in his 30s, the other in his 40s were arrested on suspicion of fraud by false representation, conspiracy to defraud and money laundering offences.
The SFO has appealed publicly for any investors or individuals with information related to Basis Markets to come forward and contact them. Their goal is to piece together what happened to the funds and who may be involved.
According to the SFO’s director, this marks a serious step in their growing capacity to tackle cryptocurrency linked fraud: “with our expanding cryptocurrency capability … we are determined to pursue anyone who would seek to use cryptocurrency to defraud investors”.
The collapse of Basis Markets and the resulting investigation by the SFO serve as a stark reminder of the risks that come with unregulated crypto investment schemes. For investors particularly retail investors lured by promises of high returns or “institutional-grade” crypto hedge funds it underlines the critical importance of due diligence, scepticism and awareness of regulatory/legal risks.
For the UK and potentially the global crypto community this case might mark a turning point: where regulators shift from passive oversight to active enforcement and where investor protection begins to catch up with the pace of innovation.
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