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James Alleyne

Partner

Criminal Litigation | Financial Regulatory Litigation | Financial Services Investigations

+44 (0)20 3535 1697

JAlleyne@kingsleynapley.co.uk

"James Alleyne was in the FCA's enforcement team for a long time and there is no doubt that his experience is invaluable for clients facing enforcement proceedings."

The Legal 500, 2025

"James Alleyne is able to provide excellent insight for clients facing regulatory enforcement proceedings, particularly in relation to supervisory matters."

The Legal 500, 2025

James is a Partner in the firm’s Financial Services Group. He advises clients on the full spectrum of financial services and FCA-related matters, including on authorisation and approval applications, perimeter and supervisory issues, internal and enforcement investigations as well as cases before the Regulatory Decisions Committee and Upper Tribunal.

James joined Kingsley Napley in 2022 from the FCA where he spent seven years in the Enforcement division, giving him a unique insight into the approach and working of the regulator.

Whilst at the FCA James built the framework, and led the dedicated team responsible, for taking supervisory intervention action against firms through the imposition of requirements, freezing of assets, banning of financial promotions and variations of permissions. This gave James a keen interest, and specialism, in the FCA’s supervisory approach. In addition, his work at the regulator in relation to crypto firms gave him particularly valuable insight into this sector.

James also has significant experience of advising on FCA criminal and regulatory enforcement investigations into firms and individuals including in relation to conduct issues, governance, anti-money laundering, insider dealing and market abuse and cases involving sexual misconduct in the workplace.

Before joining the FCA James worked as an investigative lawyer in the Proceeds of Crime Department of the Serious Fraud Office, where he conducted restraint and confiscation litigation in cases of serious complex fraud and bribery and was the prosecutor on international criminal money laundering investigations.

James is ranked as a Leading Associate in Legal 500 and is also part of the Enterprise Investment Scheme Association (EISA) Regulatory & Legal Committee and the UKBAA Legal, Tax & Regulatory Committee. 

rECENT WORK 

  • Advising a regulated senior manager on an enforcement investigation into alleged integrity failings and market abuse. The case was closed without any action being taken against the client 
  • Advising a senior individual under criminal investigation for alleged insider dealing. The case was closed without any action being taken against the client
  • Advising a regulated senior manager on an enforcement investigation into alleged misconduct and breaches of the FCA’s individual and senior manager conduct rules. The case was closed without any action being taken against the client.
  • Advising a regulated consumer credit firm on FCA supervisory intervention and a skilled person review
  • Advising an individual on a civil insider dealing investigation
  • Conducting an internal investigation into a regulated asset manager following allegations of serious misconduct by a senior individual
  • Advising numerous senior managers and certified individuals on allegations of non-financial misconduct within regulated firms and on their disclosure obligations.
  • Advising a religious foundation on the regulatory treatment of charitable donations and loans
  • Advising a professional body on regulatory issues arising from its member benefit package

Prior to joining Kingsley Napley LLP,

  • Leading the FCA’s action to prevent the world’s largest crypto firm from operating in the UK.
  • Taking intervention action against multiple overseas contracts for difference providers to protect UK consumers.
  • Advising on issues relating to non-financial misconduct, including for approved persons accused or convicted of sexual offences.
  • Advising on the first ever voluntary direction under the Money Laundering Regulations 2017 in relation to financial crime systems and controls issues at a crypto firm.
  • Conducting a money laundering investigation into the UK branch of an overseas bank, which successfully concluded at stage 1 of the settlement process.
  • Conduct of a partly-contested case before the Regulatory Decisions Committee in relation to failings in market abuse systems and controls.

 

Professional societies & memberships

 

Publications

James Alleyne

Partner

+44 (0)20 3535 1697

JAlleyne@kingsleynapley.co.uk

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