Patrick Doris is a partner in Gibson Dunn’s Dispute Resolution Group in London, where he specialises in global white-collar investigations, commercial litigation and complex compliance advisory matters.
Patrick’s practice covers a wide range of disputes, including white-collar crime, internal and regulatory investigations, transnational litigation, class actions, contentious antitrust matters and administrative law challenges against governmental decision-making.
Patrick handles major cross-border investigations in the fields of bribery and corruption, fraud, sanctions, money laundering, financial sector wrongdoing, antitrust, consumer protection and tax evasion.
Patrick’s recent commercial disputes experience has extended to advising corporations, UK public bodies and sovereign states in claims in courts and tribunals in the UK and around Europe. He has particular expertise in antitrust cases, human rights disputes and collective actions.
Patrick is recognised by The Legal 500 UK 2025 in the field of Regulatory Investigations and Corporate Crime. He is also ranked as a leading individual in the field of Administrative and Public Law, he is described as “highly attuned to client objectives, … [with] very good communication skills and clients love him.” In previous editions, clients have noted his: “…exceptional contribution to … work to decriminalise homosexuality worldwide”. Clients describe him as “totally committed, a great manager and really goes the extra mile” and “outstanding, has tremendous judgment, works exceptionally hard and always gives the impression that he is 100% dedicated to and focused on your case”. In 2022 Who's Who Legal recognised Patrick as Future Leader in its Commercial Litigation guide. In addition, he is recognised by the 2025 edition of Best Lawyers in the United Kingdom as a leading lawyer for International Arbitration.
Patrick earned his Master of Laws (first class) in European Law in 1996; and received his Bachelor of Arts in Law in 1994 from Trinity Hall, Cambridge University. Before entering private practice, Patrick taught law at the University of Warwick and worked in the Criminal Division of the Law Commission of England & Wales, the UK government’s primary law reform body. Patrick speaks English, Spanish, French and Catalan, with recent experience of conducting investigations in each of those languages.
Selected Experience:
Patrick’s recent white collar investigations experience includes:
- Advising a major global investment bank in connection with an investigation into conduct worldwide resulting in major resolution with authorities in the United States under the FCPA.
- Advising a major global corporation in the business services sector in a multi-jurisdictional investigation into allegations of tax evasion, resulting in a major settlement with a European national tax authorities.
- Advising a major European investment bank in connection with multi-jurisdictional investigations relating to alleged manipulation of LIBOR and other benchmark rates and foreign exchange rates, including in connection with investigations before the European Commission and elsewhere.
- Representing a U.S. investment bank in connection with criminal investigations brought simultaneously in the U.S. (Department of Justice) and UK (Financial Conduct Authority and National Crime Agency) in relation to suspicions of insider dealing.
- Advising a leading U.S. operator in the financial sector in connection with an investigation into suspected OFAC and EU sanctions violations by third parties using facilities provided by the operator.
- Representing a leading online gambling operator in an investigation by the UK Competition & Markets Authority into alleged breaches of consumer protection laws.
- Representing a leading figure in the field of broadcasting in connection with the Leveson Inquiry into the culture, practice and ethics of the Press.
Patrick’s recent commercial litigation experience includes:
- Representing a leading global corporation in the technology sector in connection with class action litigation commenced against it in the Competition Appeal Tribunal alleging abuse of a dominant position.
- Advising a major global technology company on the management of various antitrust-related class actions and related litigation brought against it in a number of countries worldwide, including multiple EU member states.
- Representing a leading online gambling operator in its successful defence of contested administrative law proceedings before the High Court and Court of Appeal in London in connection with allegations that it was facilitating the avoidance of industry-specific levies and unregulated provision of gambling services by its customers.
- Representing a sovereign state in litigation relating to allegations of corruption against a former public official.
- Representing a sovereign state in its successful defence of a multi-billion dollar expropriation claim before the European Court of Human Rights.
- Representing a group of U.S. journalists in proceedings brought against them in London by a subject of their work alleging defamation, breach of the GDPR, malicious falsehood and misuse of private information.
- Advising a Turkish conglomerate in connection with expropriation claims before the European Court of Human Rights.
Patrick’s recent compliance advisory experience includes:
- Advising one of the world’s leading investment banks on all aspects of its response to sanctions imposed in connection with Russia’s invasion of Ukraine.
- Advising a leading European oil & gas major on its global sanctions challenges, including in connection with the sanctions imposed by the UK, EU, U.S. and other jurisdictions in connection with the Ukraine crisis.
- Advising a FTSE 100 technology company in connection with the establishment of its global compliance framework, including arrangements regarding bribery and corruption, antitrust, AML, facilitation of tax evasion, conflicts of interest, gifts & hospitality, data privacy, modern slavery, procurement, management of third party risk generally, and related governance and reporting matters.
- Advising a leading global industrial in connection with the establishment of its GDPR compliance programme.
- Advising a global manufacturing company in connection with its response to a major cyber-penetration incident, including liaison with responsible national supervisory authorities.
- Conducting the global risk assessment necessary in connection with UK laws relating to prevention of facilitation of tax evasion for a “Big Four” audit and accounting firm.
- Advising a leading global card network on its suspicious activity reporting processes.
- Advising one of the world’s leading extractive corporations in connection with its overall global compliance operational and organisational model, and conducting a global review of its ABC compliance arrangements across operations spanning six continents.
Capabilities
- White Collar Defense and Investigations
- Accounting Firm Advisory and Defense
- Administrative Law and Regulatory Practice
- Antitrust and Competition
- Artificial Intelligence
- Betting and Gaming
- Class Actions
- Consumer Protection
- Crisis Management
- ESG: Risk, Litigation, and Reporting
- International Trade Advisory and Enforcement
- Litigation
- Privacy, Cybersecurity, and Data Innovation
- Securities Enforcement
- Securities Regulation and Corporate Governance
- Tech and Innovation
- Technology Litigation
- Transnational Litigation
Credentials
Education:
- Nottingham Trent University - 1997 Legal Practice Course
- University of Cambridge - 1996 Master of Laws (LL.M.)
- University of Cambridge - 1994 Bachelor of Arts
Admissions:
- England & Wales - Solicitor