Who holds the knowledge enforcement needs

Every enforcement system runs on two scarce resources: information about wrongdoing, and the legal authority to act on it. This week tested both. In London, the Court of Appeal quashed the convictions of five more LIBOR and EURIBOR traders and then a sixth, completing the unravelling of the Serious Fraud Office's most symbolic post-crisis prosecutions. Within days, the government opened a consultation on paying whistleblowers who bring the SFO original information. In Washington, FinCEN withdrew two long-pending proposals that would have required reporting on crypto mixing and self-hosted wallets. Meanwhile, the week's prosecutions showed where the information gaps are being exploited: a laundering service built on 15,000 deceived American money mules, a TD Bank employee who opened 86 accounts at a single Miami address, and industrial-scale Russian-linked laundering through Swedish company networks. The question running through all of it is who holds the knowledge that enforcement needs, and what it costs to get them to share it.

The Week's Stories

The LIBOR prosecutions finally collapse. On 7 October, the Court of Appeal overturned the convictions of Jonathan Mathew, Jay Merchant, Alex Pabon, Philippe Moryoussef and Colin Bermingham, following the Supreme Court's judgment in Hayes and Palombo on the legal directions given to juries. The SFO did not oppose those appeals. On 9 October the court went further and quashed the conviction of Christian Bittar, who had pleaded guilty, despite the SFO arguing for a different outcome. Lawyers for the cleared Barclays traders are now pressing for confiscated sums to be repaid with interest. The criminological lesson is not that benchmark manipulation was harmless. The SFO continues to maintain, citing the Supreme Court, that there was ample evidence on which a properly directed jury could have convicted. It is that prosecutions built on novel legal theories create fragile deterrence. Rational choice accounts assume that offenders weigh the certainty and severity of sanction. A decade of convictions now reversed signals to trading floors that the certainty was always lower than it looked, and the reputational cost of these reversals will fall on the next complex markets case the SFO brings.

The UK consults on paying whistleblowers. On 12 October, the government launched a consultation on giving the SFO powers to reward whistleblowers who provide significant, original information leading to a conviction or other enforcement action, with rewards funded from corporate penalties and calculated as a percentage of the amount recovered. The proposal follows Jonathan Fisher KC's July review, which found that the UK was losing intelligence as whistleblowers reported to US agencies that pay. The consultation closes on 8 January 2027, and City AM reports sharp division among practitioners, from warnings of "moral hazard" to the reminder that the scheme is "for intelligence, not evidence". The next day, the SFO opened a direct line to its head of legal services to speed up corporate self-reporting. Read together, the two moves are an attempt to shift a rational-choice calculation inside firms: if insiders may be paid to report, the expected cost of concealment rises, and the value of reporting first rises with it. The design risk is the one raised by the jury-credibility critics. A reward contingent on conviction gives defence counsel an obvious line of attack, which is why the scheme's value lies in directing investigations rather than supplying witnesses.

FinCEN withdraws its crypto mixing and self-hosted wallet proposals. On 5 October, FinCEN announced the withdrawal of two proposed digital-asset rules: the 2023 finding that international crypto mixing is a class of transactions of primary money laundering concern, and the 2020 proposal requiring banks and money services businesses to verify and report transactions involving self-hosted wallets. The Block reports that FinCEN cited concerns about a "chilling effect on legitimate activity" and the reporting burden on institutions, while saying it will "continue to monitor activity involving CVC mixers". Neither rule had taken effect, so existing obligations are unchanged. The significance is directional. Situational crime prevention works by increasing the effort and risk of offending at predictable choke points, and mixers are among the most predictable choke points in crypto laundering. Withdrawing the reporting proposals does not create a new opportunity, but it confirms that the US will rely on sanctions designations, seizures and voluntary freezes rather than routine transaction visibility. That is a bet on capable guardianship by issuers and exchanges, not by the reporting regime.

UK freezes London property linked to Prince Group leadership. The Times reported on 11 October that a freezing order has been placed on an £8.9 million penthouse overlooking Buckingham Palace belonging to Thet Li, the alleged finance chief of Cambodia's Prince Group, following a Foreign Office investigation, with an application to continue the seizure of £10.6 million in watches and jewellery. Freezing orders also cover a £12 million St John's Wood mansion and a £100 million City of London office building tied to chairman Chen Zhi, and properties linked to his alleged deputy. Prince Group has previously denied wrongdoing. The criminological point concerns where scam profits come to rest. Compound fraud is committed in Cambodia and Myanmar, but its proceeds are integrated through prime property abroad: Singapore has also seized the proceeds of a building sale linked to the group. Routine activity theory locates crime where motivated offenders meet suitable targets in the absence of capable guardians. For laundering, the suitable target is a high-value, low-scrutiny asset market, and London's property sector has long been one. Asset freezes at the integration stage are where the UK can impose real cost on an industry it cannot reach physically.

A laundering service built on 15,000 deceived mules. On 8 October, Oleg Korniev, a Ukrainian-Russian dual citizen, pleaded guilty to leading Your Mule Cashout, a service that recruited more than 15,000 US-based money mules to launder at least $10 million stolen by hackers from over 750 US bank accounts. Mules were deceived into believing they worked for legitimate companies, while hackers paid YMCO a percentage of the stolen funds. Korniev managed staff, rewarded and punished them on performance, and admitted responsibility for over $14.7 million in actual and intended losses. This is crime-as-a-service with a human resources department. The case is a reminder that money mules are frequently victims of deception as well as instruments of laundering, and that the organisational form of laundering services now mirrors legitimate outsourcing. Sutherland's differential association explains how techniques spread through criminal networks, but here the "learning" has been industrialised: the techniques are packaged once and sold to many clients, so disrupting the service provider removes capacity from every hacker who relied on it.

A TD Bank insider opens 86 accounts at one address. On 6 October, former TD Bank retail banker Gerardo Aquino pleaded guilty to accepting bribes and facilitating the laundering of more than $4.8 million to Colombia. Between April 2022 and November 2023, he opened fraudulent accounts, issued hundreds of debit cards to co-conspirators and unblocked cards the bank had restricted for potential fraud. Eighty-six accounts were opened using the same Miami commercial address, and those accounts alone laundered over $3 million. His reward was more than $8,000 in bribes. The same court has dealt with a series of other TD Bank insiders. The ratio of bribe to laundered value, less than 0.2 per cent, tells the story of trust exploitation. Insiders are the cheapest way to defeat controls because they sit inside the guardianship function itself. A single address hosting 86 personal accounts is exactly the kind of anomaly that monitoring should catch, which raises the question of how many alerts were overridden rather than missed.

EPPO's Investigation Hermes targets a €410 million VAT carousel. On 7 October, the European Public Prosecutor's Office conducted more than 300 searches in eight countries and detained 62 suspects in a probe into two collaborating syndicates allegedly running a carousel fraud in mobile phones and electronic devices, with estimated VAT losses of at least €410 million. Searches covered tax advisers, lawyers and transport companies, and seizure orders reached up to €310 million. EPPO notes overlaps with its earlier Admiral and Moby Dick investigations, and one suspect allegedly moved operations to Portugal after a Swedish VAT investigation. That detail is displacement in its purest form: enforcement in one member state relocated the activity rather than ending it. Carousel fraud persists because the intra-EU VAT regime creates a predictable opportunity structure, and offenders who are disrupted simply rebuild the chain elsewhere. Only cross-border prosecution of the kind EPPO now provides can follow the chain as fast as it moves.

Swedish police find industrial-scale Russian-linked laundering. Sweden's financial police have published findings, reported by AML Intelligence, that Russian organised crime is laundering money in Sweden on an industrial scale through networks of companies, with part of the money sent abroad to neobanks including Revolut. Finanswatch reports that the analysis covered suspicious transactions of around SEK 2.9 billion involving more than 3,000 people and companies, that Lithuania was the most common destination, and that around three quarters of suspicious transactions took place within Sweden, where banks' countermeasures were judged insufficiently effective. Revolut said it uses advanced machine-learning monitoring and cooperates with Swedish authorities. According to Swedish public radio, as summarised by Omni, the scheme relies on false invoices, which turns the ordinary routines of business-to-business payment into the laundering mechanism. The finding that most activity stays domestic matters: the debate about neobanks can distract from the more uncomfortable conclusion that the established banking system remains the main conduit.

A Saab associate is brought to Florida. On 11 October, the Justice Department announced that a Homeland Security Task Force had arrested Alvaro Pulido Vargas, a Colombian national charged in two indictments alleging the laundering of more than $2 billion connected to Venezuelan government bribery schemes, including food and medicine contracts under the CLAP programme. The BBC reports that he had been held in Venezuela since 2023 and that the DOJ did not explain how he came into US custody. He is presumed innocent. His former business partner Alex Saab has pleaded guilty in Miami and named him as an accomplice, according to The Rio Times. The case is a study in how kleptocratic corruption converts public welfare budgets into private wealth, using the international banking system as the transmission belt. Strain theory is usually applied to offenders, but here the strain fell on the victims: households facing shortages whose food programme allegedly became a laundering opportunity. The prosecution will test how far a US court can reconstruct a corruption network that ran through state institutions it has no jurisdiction over.

New Research Worth Reading

Shy (2026), Whistleblowers and financial fraud, in Journal of Financial Stability, 82. A formal model showing that the optimal whistleblower reward is a fraction of the amount recovered from fraud loss, capped at the level that can no longer attract additional whistleblowers, and explaining why rewards alone do not deter all potential fraudsters without additional fines or custodial penalties. It is a timely corrective to the UK debate: the economics support percentage-based rewards, but only as one component of a sanctions system rather than a substitute for it.

Franceschini, Wyndham, Le, Li, Torres Lliró, Mukhopadhyay and Bo (2026), Imperfect Victims: Comparing Chinese and Vietnamese Survivors of Forced Criminality in Southeast Asia's Online Scam Industry, in Asian Journal of Criminology, 21. Drawing on surveys, interviews, court records and media coverage, the authors compare how Chinese and Vietnamese survivors were recruited into scam compounds and what happened to them after they left. Their central argument, that people compelled to commit fraud are routinely treated as offenders or willing participants rather than victims of coercion, is essential context for reading the Prince Group asset freezes: the proceeds being frozen in London were generated by people who, in many cases, had no choice.

Arnone (2026), Regulating the Crypto-Laundering Chain: A Comparative Study of Scam Compounds and Money Mule Mechanisms Within Criminal Networks, in Risks, 14(4). A comparative legal analysis of four cases, two Southeast Asian scam-compound enforcement actions and two European crypto-asset seizures, examining whether anti-money laundering and crypto-asset frameworks can disrupt laundering chains as a whole rather than one component at a time. The chain-based framework maps directly onto this week's Korniev plea and FinCEN withdrawals: mules, compounds and crypto rails are interdependent, and regulating any one of them in isolation leaves the chain intact.

What I Am Watching

• Alvaro Pulido Vargas's initial appearance in the Southern District of Florida on 13 October, and how prosecutors use evidence from Alex Saab's guilty plea (US Department of Justice).
• The appointment of the next SFO Director, with applications closing on 30 October, and whether the new leadership inherits a whistleblower reward power and a damaged complex-markets record at the same time (GOV.UK).
• Responses to the whistleblower reward consultation before it closes on 8 January 2027, particularly on reward caps and the criminalisation of false reports (City AM).
• Comments on FinCEN's proposed prohibition on transmittals involving the A7 Network's sub-agents, due on 4 November, which shows the agency remains willing to use special measures against named networks even as it retreats from category-wide crypto rules (Federal Register).
• The court application to continue the seizure of £10.6 million in watches and jewellery linked to Prince Group's alleged finance chief, and whether UK authorities move from freezing orders to civil recovery (Decrypt via Yahoo News).