Aidan Casey QC


Aidan’s practice covers all areas of commercial and business law, with a particular emphasis on international and domestic commercial fraud and the identification and recovery of the proceeds of crime in that sphere.

Aidan’s practice over recent years has involved a significant number of very heavyweight cases with a Russian / CIS element, and with associated offshore issues.  These cases have included OJSC Aeroflot v Berezovsky & Forus Group Companies (acting for Aeroflot), Government of the Samara Region v Berezovsky (acting for the Government of the Samara Region of the Russian Federation), and OJSC Aeroflot v Berezovskaya ([2014] EWHC 70 (Ch), [2014] EWCA Civ 431, [2014] EWHC 3064 (Ch)).  The latter case centred upon a dispute as to the control of the estate of the late Mr Boris Berezovsky, and involved complex and heavily contested applications as to privacy and confidentiality, and related ECHR issues, concerning information belonging to the family and estate of the late Arkady ‘Badri’ Patarkatsishvili.

He also regularly undertakes arbitration work, again often arising out of Russian / CIS disputes.  He is currently instructed in a series of related LCIA and International Commercial Arbitration Court (Moscow) arbitrations, in a dispute concerning the ownership and control of one of Russia’s 30 largest banks.  The case also has a Cypriot element and it raises issues as to the arbitrability of Russian corporate disputes.  He is also currently instructed in an LCIA arbitration concerning a very large open-cast coal mine in Siberia, again with substantial Cypriot law elements and involving allegations of fraud and profit-stripping.

He is regularly instructed by banks and other institutions and clients in relation to fraud and associated banking and also trust-related work, and he regularly works in conjunction with lawyers in other jurisdictions (recent examples include Switzerland, Liechtenstein, the Bahamas, Jersey and the Isle of Man) on multijurisdictional claims involving fraud and misfeasance and associated issues ranging from trusts and ‘trust-busting’, and asset-tracing to corporate governance and regulatory issues.

Recent cases include:

  • A successful appeal to the Court of Appeal in a proceeds of crime case involving wide-ranging issues of multi-jurisdictional asset-tracing, the corporate veil, and the validity and governance of a number of offshore trusts and corporate entities.
  • A successful appearance in the Supreme Court in a case involving an attempt by the RCPO to pierce the corporate veil of a structure involving ‘one man’ companies and corporate directors.
  • An appeal to the Privy Council acting for a well-known property developer in the Bahamas, in a case involving large-scale allegations of breach of mandate and unauthorised transfers, and also capacity issues.
  • Representing a number of investors who have lost large sums of money in a ‘boiler room’ scam involving the sale of En Primeur wines.

His commercial practice includes charterparty and other shipping disputes, arbitrations including in particular LMAA, LCIA and BIT arbitrations, and also carriage by road (CMR) cases.

In addition to commercial/contractual disputes, he also undertakes significant chancery-commercial cases, and has wide experience of domestic and international claims arising from shareholders’ and directors’ disputes and misfeasance, and share sale warranty claims.

Aidan has substantial experience of claims, including claims potentially running to in excess of £300 million, arising from the recent Libor-rigging events and from related interest rate hedging product sales. He also has a particular interest in similar claims arising from Forex-rigging, and has developed substantial market knowledge in that context.

His practice also includes significant volumes of domestic commercial fraud and asset recovery of all types, and fraud perpetrated by NHS contractors (he acts for a number of Health Authorities and associated bodies). He has substantial experience of urgent interim relief applications, particularly freezing injunctions and injunctions concerning restrictive covenants in both employment and share-sale contexts.

He undertakes professional negligence work related to the commercial and business context, particularly in relation to accountants, solicitors and surveyors. His practice in this area has a growing emphasis on acting, mainly for lenders, in claims against surveyors and solicitors arising out of mortgage frauds and other over-valuations.

Aidan also has a busy and growing practice in the sports, media and entertainment field. He has acted for a number of Premier league footballers and also for agents in disputes involving the FA Agents Regulations and disputes with clubs, sponsors and others. He appeared for the defendant vendor in the very high profile claim RDF Media v Clements and has recently been engaged in a complex and wide-ranging libel case in the Court of Appeal involving a well-known Russian oligarch. He has also acted in a claim involving the sale of allegedly fake Francis Bacon drawings.

Aidan regularly appears in the Privy Council, on the full range of appellate issues which come before the Judicial Committee – commercial, constitutional and criminal. Recent representative cases have involved:

  • Attempts to evade land-ownership control and exchange control legislation in Bermuda.
  • Banking appeals for the Bahamas subsidiary of a private Swiss bank.
  • Large-scale confiscations under anti-money laundering legislation.
  • Advising a telecommunications provider in relation to the impending overhaul of the regulatory and statutory telecommunications regime in Bermuda.


Aidan is able to accept instructions directly from members of the public, companies and other entities through the public access scheme (also known as direct access).  Aidan has acted, advised and drafted pleadings and documents for a number of individuals and small and medium sized businesses on a direct access basis. He is happy to accept instructions on a direct basis in appropriate cases. If you wish to instruct Aidan on a direct basis, please speak to the clerks. 

For more information on public access, please see the Bar Council website.

Legal Directories

Chambers & Partners 2019

  • "He has an understated but very effective manner of advocacy and he works phenomenally hard."
  • "Very clever and extremely user-friendly."
  • Fraud: Civil 
  • "An excellent advocate who has the detail of a case at his fingertips."
  • "He distils really complex issues into language clients can understand"
  • "He's good at talking people through the human aspects of a case."
  • Commercial Dispute Resolution 

Chambers & Partners 2018

  • 'Quick to grasp complex issues and identify commercial solutions, he provides practical advice and is a great team player.'
  • 'Very easy to work with and a charming guy'.
  • Commercial Dispute Resolution
  • 'An excellent all-round performer. He provides insightful advice and is always looking to add value. He is also superb in the courtroom'.
  • Fraud:Civil

Chambers & Partners 2017

  • 'He is so clever and yet so personable. Aidan's written work is outstanding. His advocacy is clear, well put together and persuasive'.
  • New Silk: Fraud:Civil

Chambers & Partners 2016

  • 'He shows great attention to detail and is very conscientous whilst remaining user-friendly and good value'.
  • 'He is totally trusted by lawyers in the City'.
  • Civil Fraud

Legal 500 2017

  • ‘He is a master of detail, excellent with clients and has a thorough grasp of the law.’
  • Fraud: Civil
  • ‘Easy to work with, thorough and a very good advocate.’
  • Commercial Litigation

Legal 500, 2016

  • 'His willingness to get stuck in makes working with him a real pleasure'.
  • Civil Fraud – New Silks
  • 'Tremendous- he has the detail at his fingertips'. 
  • Commercial litigation – New Silks

Publications and Lectures

Aidan lectures to solicitors on commercial law issues, including the Proceeds of Crime legislation. His publications include co-authored chapters of “Banking on Corruption: the legal responsibilities of those who handle the proceeds of corruption” and of “The funding of Terror: the legal implications of the financial war on terror”, both published by the Society of Advanced Legal Studies.

He gave a presentation on 'Interim Remedies' as part of the Bar Council's UKTI Mission to Russia & Kiev. 


Commonwealth Lawyers' Association


LLB (First Class) King’s College, University of London