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Aaron is an established junior in the fields of public law and human rights, extradition, criminal law, and regulatory/disciplinary proceedings. He is consistently recognised in the legal directories for his expertise and the quality of his advocacy and written work.

Public law and human rights

Aaron regularly acts for the Government in public law proceedings. He is a member of the Government’s civil panel of advocates and has DV security clearance.

In addition to panel work, Aaron undertakes a broad range of public law and human rights work including advice and representation in judicial review proceedings connected to the substantive areas of his practice. Most recent examples of this include:

  • Acting (led by Tim Owen QC) for a former senior board member of a European bank who brought judicial review proceedings against both the CPS and police for their conduct of an investigation;
  • Successfully representing a local authority in a claim brought by another local authority concerning the correct interpretation of their respective duties under the provisions of the Legal Aid, Sentencing and Punishment of Offenders Act 2012;
  • Advising (led by Lord Ken Macdonald QC) in relation to a challenge concerning a proposed high-profile private prosecution in the UK;
  • Advising the Independent Police Complaints Commission in its responsibilities, the exercise of its powers under the Police Reform Act 2002, and the conduct of its relationships with other agencies. This work has arisen in the context of investigations conducted by the IPCC and in response to Inquiry findings;
  • Advising and acting for a company director in a challenge to the lawfulness of the Metropolitan Police’s search and seizure of items from a safety deposit box, and the continued retention of seized items.

In addition to acting in claims which arise from Aaron’s substantive areas of practice, he also appears in specialist proceedings. Most recently Aaron was instructed (led by Gavin Millar QC) to represent News Group Newspapers and a number of individual journalist applicants in complaints made to the Investigatory Powers Tribunal for violations of the Applicants’ Article 10 ECHR rights arising from the police’s use of RIPA to access communications data in order to identify journalists’ confidential sources in the context of the ‘plebgate’ investigation.

ECHR claims

Away from domestic law, Aaron also acts for individuals and organisations in relation to claims to the European Court of Human Rights for Convention violations. He is regularly instructed to assist in advising on and drafting detailed applications to the Strasbourg Court (most recently for a large UK based media company and a foreign company involved in civil proceedings abroad). He has advised individuals and organisations on application arising from both criminal and civil proceedings.


Aaron acts for Requested Persons, Requesting States and interested parties in the most complicated and high profile extradition proceedings brought under both Parts 1 and 2 of the Extradition Act 2003.

Aaron appears at all court levels. He has been instructed in most of the recent key Supreme Court decisions in this area of law, including Assange v The Swedish Public Prosecutor (led by Clare Montgomery QC) for the Swedish authorities, for interveners JUSTICE in HH and PH v Italy (led by Alex Bailin QC), and most recently for one of three appellants in Bucnys and others v Lithuania and Estonia. Aaron has also appeared in many of the leading and most well known 2003 Act cases before the High Court (for example: Khurts Bat v Germany (on Special Mission immunity), El Ashmawy v Italy (on prison conditions), Tappin v United States (on double criminality), Tajik v United States (on unreasonable delay).

As well as providing representation, Aaron regularly advises governments, Requested Persons, and interested parties on all aspects of extradition from pre-request advice to appellate stage. He has been instructed by the Attorney General of the Isle of Man to advise on the application of the Extradition Act 1989. Aaron also regularly advises on issues of extradition policy and was instructed by a government department to draft detailed submissions for the Home Office’s extradition review.

A selection of the most recent cases in which Aaron has appeared include:

  • Successfully acting (led by Julian B. Knowles QC) for Francesco Becchetti, owner of Leyton Orient F.C. and media and construction businessman,  in defeating a politically motivated Albanian extradition request, which alleged the commission of tax offences and money laundering, by demonstrating that the Albanian government had misled the UK extradition court, resulting in an abuse of process and a stay of the proceedings;
  • Successfully acting for a former senior official of a Russian bank sought in relation to politically motivated allegations of tax fraud;
  • Successfully acting for a Managing Director of a global asset management company facing allegations of fraud in a European country;
  • Successfully acting for the Government of the United States (led by Mark Summers QC) in the high-profile high-frequency trading ‘flash crash’ case;
  • Successfully resisting an extradition request from the United States on human rights (Article 5 ECHR) grounds;
  • Successfully defending a Requested Person sought by a French judicial authority in relation to alleged VAT fraud by demonstrating that double criminality had not been established beyond reasonable doubt;
  • Successfully acting for the Government of the United States (led by Alex Bailin QC) in a case concerned with the prohibited export of controlled goods to Syria in violation of US export controls;
  • Successfully obtaining the surrender of an alleged ETA terrorist sought for the attempted assassination of the King of Spain (led by Julian B. Knowles QC).

Current cases include the provision of advice to the former owner of a foreign bank, acting for the Government of India in an extradition request concerning an allegation of international cricket match fixing, acting (led by Tim Owen QC) for a Requested Person sought by Thailand where the adequacy of death penalty assurances is in issue, and representing a Requested Person sought by Turkey in connection with alleged terrorism offences.

Criminal law

Since the start of his career Aaron has acted for both prosecution and defence in providing advice and appearing in trials and appeals at all levels within the criminal courts.

Advisory work

Aaron provides strategic advice on criminal law from the pre-proceedings phase through to appeal. He is presently advising on the bringing of a private prosecution of a former senior minister of a foreign government. Most recently he has acted for two multi-national law firms on issues concerning potential exposure to criminal liability in the UK. He has also been instructed by the Electoral Commission in relation to liability relating to election expenses.

Aaron has also been instructed by foreign governments in connection with potential UK liability; most recently to advise the German government on issues of UK criminal liability of witnesses answering UK national security sensitive questions in Germany.

Trial work

Aaron is an experienced trial advocate and maintains a broad trial practice. He has particular expertise in financial crime (for example in the successful defence of the first defendant in the iSOFT prosecution (led by Tim Owen QC)). His expertise in this field has been greatly enhanced through periods working closely with the SFO, FCA and the former RCPO. His experience in this field has led to instruction in cases which involve a financial crime component across his practice areas.

In his wider criminal practice Aaron has also acted for defendants accused of terrorism offences (most recently in R v Syed and ors which concerned an alleged beheading plot in the UK). Aaron also maintains an active general crime practice: this year he has acted for a defendant accused of the possession of drugs and a firearm with intent to endanger life.

Appellate work

From the earliest part of his career Aaron has acted for appellants in the Court of Appeal. He was instructed for the defence in the first prosecution of the offence of ‘possession of extreme pornography’ and successfully secured the quashing of all counts before the Court of Appeal. Aaron has acted in high profile cases including for one of the defendants convicted of the murder of Stephen Lawrence, and most recently, in successfully obtaining the quashing of multiple convictions for conspiracy to murder and conspiracy to rob, which involved advising on and deploying previously unused forensic voice recognition analysis.

Regulatory and disciplinary proceedings

Aaron also acts for individuals involved in regulatory and disciplinary proceedings in a range of areas. He acted successfully (led by Tim Owen QC) for Massimo Cellino, owner of Leeds United A.F.C, before the Football League in overturning the League’s decision to sanction Mr Cellino by arguing that an Italian conviction for non-payment of VAT was not an offence of dishonesty for the purposes of the League’s rules.

Aaron accepts instructions under the Bar Council Standard Contractual Terms, details of which can be found here.


“He is impressive in court, and second to none at drafting.”

“He is a highly experienced counsel, who has an in-depth knowledge of extradition law.”

“He is responsive and extremely knowledgeable, and his written advice is of a high quality.”

“Impresses with his courtroom manner, strategic skill and ability to process and organise significant amounts of documentation.”

“It is clear that he definitely knows his stuff. He is technically strong and impresses with his manner.”

Chambers & Partners