Image: Joanna Dimmock

Joanna Dimmock

Partner, Litigation Department


Phone: 44-020-3023-5170
Fax: 44-020-3023-5470


Joanna Dimmock is a partner in the Investigations and White Collar Defense practice of Paul Hastings and is based in the firm’s London office. Ms. Dimmock has broad experience representing individuals and corporates. She has particular expertise in international corruption, criminal cartels, economic sanctions, extradition, mutual legal assistance, private prosecutions and FCA investigations, and many of these cases have an international component. Ms Dimmock frequently acts in high-profile and sensitive cases against the Serious Fraud Office (SFO), the National Crime Agency, HM Revenue & Customs, the Financial Conduct Authority, the police, and other agencies, both in the UK and overseas.

According to The Legal 500 UK, "Joanna Dimmock is undoubtedly the future of white collar criminal defence: she displays exceptional intellect, tactical know-how and remarkable commitment to her clients." 


  • Named a 'Leading Individual' for Fraud: White-Collar Crime (Advice to Individuals) - The Legal 500 UK 2023
  • Named a 'Leading Individual' for Regulatory Investigations and Corporate Crime - The Legal 500 UK 2023
  • Ranked as Up and Coming for Chambers High Net Worth 2021 - Financial Crime: High Net Worth Individuals - UK. Clients describe her as "one of the most amazing solicitors in financial crime; she is one of the best of her generation." "She is so driven, incredibly hard-working and so tenacious." "She cares about her cases, she is very good with clients and she wants to know all the detail of the case but has the experience and judgement to make good decisions."
  • Ranked as an ‘Up and Coming’ Lawyer, Financial Crime: Corporates/Individuals, The Legal 500 UK 2020. The Legal 500 UK 2020 describes her as “an incredibly bright, excellent lawyer and inspires trust in her clients.”
  • Recognized by Who’s Who Legal as a Future Leader in Investigations and Crime Defense, 2019, and one of four lawyers across EMEA to be rated as “most highly regarded.”
  • Named in Global Investigations Review’s Top 100 Women in Investigations, 2018


  • London School of Economics and Political Science 
  • University of York


  • Represented and secured the acquittal of Richard Usher, a senior bank trader, in connection with a worldwide investigation and prosecution of the alleged manipulation of foreign exchange benchmarks by the Department of Justice (DOJ), SFO, and other agencies. 
  • Acting for a senior executive in the oil industry charged by the SFO in relation to its Unaoil investigation and prosecution relating to alleged bribery in post-war Iraq. 
  • Representing one of the defendants in a prosecution by the SFO relating to an alleged fraud against the U.K. government by G4S.
  • Representing a senior oil executive in relation to a joint SFO and DOJ investigation in relation to overseas bribery. 
  • Advised a football agent on an HM Revenue & Customs investigation in relation to tax evasion. 
  • Advised a senior gaming industry executive in relation to an HM Revenue & Customs investigation and associated U.S. licensing issues.
  • Advised a global financial institution regarding a multi-jurisdictional FCA investigation in relation to failures in systems and controls related to money laundering.
  • Advised a global financial institution in relation to civil recovery order proceedings brought by the National Crime Agency.
  • Advised a company in the mining sector regarding an internal investigation into allegations of bribery and corruption.
  • Acted for a major Middle Eastern businessman in relation to his de-listing from international sanctions lists and in respect of criminal charges for corruption and money laundering, global freezing orders, and an Interpol red notice in numerous jurisdictions, including the U.K., Egypt, Canada, Switzerland and the Cayman Islands.
  • Acted for a former Egyptian Minister and his wife in relation to their de-listing from EU restrictive measures pursuant to criminal charges for bribery and corruption. This included representing the client in proceedings brought before the European General Court and associated judicial review proceedings before the U.K. Administrative Court.

    Practice Areas

    Anti-Corruption and FCPA

    Investigations and White Collar Defense

    White Collar Defense




    Barrister regulated by the Bar Standards Board


    The College of Law, London, J.D. 2004

    The London School of Economics and Political Science, M.S. 2002

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