Julian Hayes

Julian has his finger on the pulse when it comes to data law developments… He is gentle but fiercely intelligent.’ –

Legal 500, 2021

Julian is a partner specialising in corporate and financial crime, computer misuse offences, surveillance and data protection law.

He advises individuals and corporates in relation to fraud and corruption investigations by the SFO, enforcement actions by the FCA (insider dealing and market abuse) and offences under the customs and excise legislation prosecuted by HMRC.

As well as expertise in relation to cybercrime, Julian also specialises in advising data controllers and others on the provisions of the Data Protection Act 2018 and GDPR (including breach reporting), and Communication Service Providers in relation to their obligations under the Investigatory Powers Act 2016 and its associated Codes of Conduct.

His work encompasses internal investigations, extradition (including Interpol Red Notices), ancillary matters such as judicial review, restraint and confiscation, mutual legal assistance, Norwich Pharmacal applications in the High Court and defending complaints against corporates for breaches of the OECD’s Guidelines for Multinational Enterprises.

Julian has acted for oil trading enterprises, multinational pharma companies, government organisations, leading social media platforms, telecommunications providers, international recording artists and other high profile individuals.

Following an undergraduate degree at the University of Kent, Julian completed post-graduate legal studies in Newcastle before training as a barrister at a leading criminal/regulatory chambers. He then worked as a regulator at the London Stock Exchange before moving to Australia where he spent several years undertaking high profile litigation at an international law firm. After returning to the UK and joining BCL, Julian became a partner in 2017.

Julian is an Executive Committee Member of the Fraud Lawyers Association (‘FLA’) and contributor to the FLA’s response to the Sentencing Council’s consultation on fraud, bribery and money laundering sentencing guidelines.

Julian speaks intermediate level German.


  • GIR’s Guide to Cyber Investigations:  Investigations in England & Wales – A Practitioner’s Perspective (2019)
  • Market Intelligence’s Privacy & Cybersecurity – United Kingdom (2019)

Professional Memberships:

  • Fraud Lawyers Association (Executive Committee Member)
  • European Criminal Bar Association
  • International Bar Association


  • Theatre and opera
  • German language and culture
  • Cycling & walking

“Julian has his finger on the pulse when it comes to data law developments… He is gentle but fiercely intelligent.”
The Legal 500, 2021

Articles by Julian Hayes

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