• Recognised as an absolute leader in the fields of corporate crime and regulation; there is no one better at understanding what the client needs in these practice areas or who delivers it as well.

    Corporate & Financial Crime

    Jason Mansell is uniquely placed to deal with anything and everything an individual and corporate may face during the process of a criminal and linked regulatory investigation.   An expert on corporate and financial crime, he regularly advises and acts on behalf of corporates and individuals in relation to market offences, bribery and corruption and anti-money laundering and proceeds of crime matters.

    Regulatory 

    Jason has advised firms and individuals in relation to more than 100 FCA (formerly FSA) enforcement investigations and associated proceedings in the RDC, Upper Tribunal and High Court. He has also acted both for and against the Financial Reporting Council (formerly the AADB) in respect of disciplinary proceedings brought by the accountancy regulator. Many of his instructions result in no public outcome, preserving confidentiality.  He is truly a leader of this field.

    Reviews

    Chambers UK 2018: Financial Crime - Band 1; Financial Crime (Corporates) - Band 2; Financial Services - Band 2

    Legal 500 2017: Business and Regulatory Crime (Including Global investigations) - Tier 2; Financial Services - Tier 2

    'Provides sensible practical advice and is well suited to dealing with complex cases.' Chambers UK Financial Services (2018)

    'Offers an excellent client focused service. He is willing to roll up his sleeves and get stuck into the most difficult problems, and he always provides solid, tactical and commercial advice.' Chambers UK Financial Services (2016)

    'He’s an extremely calming influence and good on the detail.' Chambers UK Financial Services (2015)

    'Very knowledgeable and responsive to client needs.' Legal 500 Business and Regulatory Crime (2015)

    Professional Memberships

    • ARDL
    • FLA
    • IBA
    • Midland Circuit
    • South Eastern Circuit

    Education

    • Hardwicke Scholar Lincoln's Inn
    • Law LLB Hons

     

    Recent Cases

    News

    • Jason Mansell acting for former CEO of Sonali Bank (UK)

      Mr Prodhan has referred a Decision Notice issued by the FCA to the Upper Tribunal.

      ...
    • QEB Hollis Whiteman and Mourant Financial Services & Regulatory Forum

      Joint event hosted on 2nd October at the Radisson Blu Hotel, Jersey.

      ...
    • FCA abandons insider dealing investigation

      Jason Mansell acted for a senior employee of a PLC who on multiple occasions and in breach of internal policy traded in his employers' securities at times when the FCA suspected he might have been in possession of price sensitive information.,    After a ...

      ...
    • William Boyce QC and Jason Mansell Act for Deutsche Bank Trader in FCA LIBOR Probe

      William Boyce QC and Jason Mansell acted for Guillaume Adolph in respect of the FCA’s investigation as to whether he had been knowingly concerned in a breach by Deutsche Bank of Principle 5 (market conduct).

      ...
    • Jason Mansell and Rachna Gokani act for RBS Trader in FCA LIBOR Investigation

      Jason Mansell and Rachna Gokani acted for former RBS trader Neil Danziger in connection with contested regulatory proceedings before the RDC arising out of the FCA’s investigation of LIBOR. Jason and Rachna were instructed by Ben Rose and Charles Ku...

      ...
    • RDC direct FCA to discontinue insider dealing case

      Matter concerned a bank employee who was alleged to have passed price sensitive information.

      ...
    • Jason Mansell is ranked as a Leader in his Field in Financial Crime, Financial Crime Corporates and Financial Services in Chambers UK Bar Directory 2018.

      Details of the rankings and commentaries will be published in November 2017 in the Chambers UK Bar Directory 2018.

      ...
    • RDC (The Regulatory Decisions Committee) direct FCA to revoke prohibition order

      QEB Hollis Whiteman member Jason Mansell (instructed by Kingsley Napley) acted for Robin Chhabra in respect of his successful application for a prohibition order imposed in 2010 to be revoked.

      ...
    • Jason Mansell comments on former Black Rock manager conviction

      Jason Mansell, barrister at QEB Hollis Whiteman, commented on the conviction of trader Mark Lyttleton for two counts of insider dealing in a prosecution brought by the FCA. Lyttleton will be sentenced on 21st December.Read the Bloomberg case report and co...

      ...
    • Jason Mansell Comments on Operation Tabernula verdict

      Jason Mansell comments on Operation Tabernula verdicts. http://www.bloomberg.com/news/articles/2016-05-09/ex-deutsche-bank-broker-among-two-guilty-in-insider-trading-case

      ...
    • Jason Mansell acts for CEO in FCA dishonesty probe - RDC directs no action

      Following a contested hearing, the FCA's own Regulatory Decisions Committee has directed that no action should be taken against a CEO of a former regulated firm in connection with allegations concerning the alleged appropriation of  client monies. Jason w...

      ...
    • Jason Mansell acts for trader in FCA LIBOR probe - RDC directs no action

      As reported in the Telegraph and other newspapers, the FCA's own Regulatory Decisions Committee has directed that no action should be taken against a former senior trader at UBS accused of alleged LIBOR manipulation.      Jason  Mansell was instructed b...

      ...
    • Jason Mansell advises the Moorhouse Group Limited in FCA probe.

      Jason Mansell acted on behalf of the Moorhouse Group Limited (Andrew Katzen at Hickman Rose instructing)  in relation to the FCA's investigation concerning the sale of add on products to new commercial customers during 2012.   Instructed from the outset a...

      ...
    • Jason Mansell and Lucy J. Kennedy boost Business Crime and Financial Regulatory Practice at QEB Hollis Whiteman

      Jason Mansell has joined QEB Hollis Whiteman and Lucy J. Kennedy has returned to the set to reinforce its leading Business Crime and Regulatory practice. Jason Mansell Click here for ProfileJason, who has advised in an exceptional number of investigations...

      ...

    Articles

  • Corporate and Financial Crime

    A senior junior with unrivalled expertise of corporate and financial crime and their linked regulatory proceedings; he is a true leader in the field.

    Overview

    Jason Mansell is uniquely placed to deal with anything and everything an individual and corporate may face during the process of a criminal and linked regulatory investigation.   An expert on corporate and financial crime, he regularly advises and acts on behalf of corporates and individuals in relation to market offences, bribery and corruption and anti-money laundering and proceeds of crime matters.

    Experience

    Jason defends individuals and corporates under criminal investigation by the SFO, FCA and CPS. He is often instructed by corporates in connection with criminal compliance issues under the Proceeds of Crime Act 2002, Bribery Act 2010, Enterprise Act 2002, and export control legislation.

    Jason has been instructed in 20 criminal investigations and inquiries for insider dealing, market abuse and market manipulation, including defending the former finance director of iSOFT Group Plc in relation to allegations of market manipulation and acting in FSA v Littlewood. Pre-charge, Jason was instructed in Operation Tabernula and Operation Saturn, the FCA’s largest insider dealing investigations to date.

    Jason advises corporates in relation to disclosures to the SFO. He acted for a major bank in connection with the SFO’s investigation of the forex market and for individuals in connection with the alleged manipulation of LIBOR and EURIBOR. 

    He acted for Standard Bank in connection with an allegation of overseas bribery and a deferred prosecution agreement.  He has also advised a number of senior executives in connection with proposed SOCPA agreements and is highly regarded within the market for his strategic vision and tactical awareness.  Jason has a particular interest in Proceeds of Crime Act issues and regularly advises regulated sector firms and individuals on their statutory and regulatory obligations.

    Jason is also an expert in data protection issues and represented the defendant company and its CEO in the largest prosecution brought by the ICO.   

    Jason draws on his previous experience as a regulator, prosecutor and senior lawyer at Allen & Overy LLP to deploy the strategy and tactics necessary to achieve the best possible results.  Adept at the intricacies of financial crime, he is exceptionally bright and strategically astute, a pleasure to work with and someone who fights for his clients.

    Notable Cases

    SFO v X PLC 
    Instructed to advise a High Street Bank in relation to the SFO investigation of FOREX.

    SFO v Standard Bank 
    Instructed to advise the Bank in relation to the investigation of allegations of overseas bribery which culminated in a DPA.

    SFO v X 
    Advising an individual in connection with the SFO’s investigation of Libor.

    SFO v M 
    Acting for M in relation to regulatory and criminal proceedings concerning the alleged manipulation of EURIBOR.

    FCA v X 
    Senior manager being disciplined by FCA for alleged Libor manipulation and oversight failings.

    RE: J
    Advised the Managing Director of a company in respect of a US/UK investigation in relation to alleged breaches of Iranian sanctions.

    Reviews

    Chambers UK 2018: Financial Crime - Band 1; Financial Crime (Corporates) - Band 2; Financial Services - Band 2

    Legal 500 2017: Business and Regulatory Crime (Including Global investigations) - Tier 2; Financial Services - Tier 2

    'Provides sensible practical advice and is well suited to dealing with complex cases.' Chambers UK (2018)

    'He absolutely knows the law like the back of his hand and is excellent tactically." "He is really good on financial crime because he is a top specialist on the FCA side.' Chambers UK (2018)

    'Extremely hard-working, and has fantastic judgement and great client care.' Chambers UK (2017)

    'Excellent in cases where the financial and the regulatory cross over.' Legal 500 (2017)

    'He understands the needs and concerns of corporate clients and can speak their language. His advice has an application not just to the criminal law but to the wider commercial interests of the entity.' Chambers UK (2016)

    Recent Cases

    • Acted  for the defendant company in connection with the SFO’s prosecution for alleged price fixing in the pharmaceutical industry.

    • Acted for the FD of ISOFT PLC in relation to the FCA’s criminal prosecution for misleading investors.

    • Advising a trader and rate submitter in connection with the SFO’s investigation of LIBOR. 

    News

    • Jason Mansell acting for former CEO of Sonali Bank (UK)

      Mr Prodhan has referred a Decision Notice issued by the FCA to the Upper Tribunal.

    • QEB Hollis Whiteman and Mourant Financial Services & Regulatory Forum

      Joint event hosted on 2nd October at the Radisson Blu Hotel, Jersey.

    • FCA abandons insider dealing investigation

      Jason Mansell acted for a senior employee of a PLC who on multiple occasions and in breach of internal policy traded in his employers' securities at times when the FCA suspected he might have been in possession of price sensitive information.,    After a ...

    • William Boyce QC and Jason Mansell Act for Deutsche Bank Trader in FCA LIBOR Probe

      William Boyce QC and Jason Mansell acted for Guillaume Adolph in respect of the FCA’s investigation as to whether he had been knowingly concerned in a breach by Deutsche Bank of Principle 5 (market conduct).

    • Jason Mansell comments on former Black Rock manager conviction

      Jason Mansell, barrister at QEB Hollis Whiteman, commented on the conviction of trader Mark Lyttleton for two counts of insider dealing in a prosecution brought by the FCA. Lyttleton will be sentenced on 21st December.Read the Bloomberg case report and co...

    • Jason Mansell Comments on Operation Tabernula verdict

      Jason Mansell comments on Operation Tabernula verdicts. http://www.bloomberg.com/news/articles/2016-05-09/ex-deutsche-bank-broker-among-two-guilty-in-insider-trading-case

    Articles

  • A formidable strategist and advocate, his knowledge of financial regulation is truly unrivalled; he should be everyone’s first port of call in this field.

    Overview 

    Jason has advised firms and individuals in relation to more than 100 FCA (formerly FSA) enforcement investigations and associated proceedings in the RDC, Upper Tribunal and High Court. He has also acted both for and against the Financial Reporting Council (formerly the AADB) in respect of disciplinary proceedings brought by the accountancy regulator. Many of his instructions result in no public outcome, preserving confidentiality.  He is truly a leader of this field.

    Experience 

    Jason is instructed on behalf of firms and individuals in relation to FCA investigations concerning alleged breaches of FCA Rules and Principles and for market abuse. He has acted for a number of firms in relation to FCA supervisory interventions through the use of the OIVOP procedure and for a number of alternative investment companies and their Directors in connection with High Court proceedings for alleged breaches of the regulatory perimeter.

    Other instructions include acting for a PLC in relation to a listing rules inquiry, former senior employees of banks in relation to the FCA’s investigation of Libor, a former CEO of a large financial institution in respect of prohibition proceedings, various individuals in relation to allegations of market abuse and an insurance company in connection with allegations of mis-selling.

    Jason has also acted for individuals in relation to applications for FCA approval and advises individuals and corporates on regulatory reporting, perimeter, authorisation and supervision issues.

    Jason draws on his previous experience as a regulator, prosecutor and senior lawyer at Allen & Overy LLP to deploy the strategy and tactics necessary to achieve the best possible results. There is no stone he has left unturned in the field of financial regulation.  He is calm, self-assured and a passionately robust advocate, always doing everything he can to secure the best outcome for the client.  His experience in both the criminal and regulatory spheres mean that he is prepared for everything.

    Notable Cases

    FCA v Capital Alternatives & Or's [2015] EWCA Civ 284
    Advised a Firm in connection with FCA civil proceedings for breaching the regulatory perimeter and misleading statements.

    FCA v Z (2015)
    Jason Mansell acted for a individual being disciplined by the FCA for market abuse.

    FRC v Z (2015)
    Jason Mansell acted for a FD of a PLC in connection with FRC disciplinary investigation.

    FCA v Koutsogiannis (2015)
    Jason Mansell advised a trader and manager rate in connection with the FCA’s regulatory investigation of LIBOR. Proceedings discontinued by order of the RDC.

    RE: C (2013)
    Advised an Iranian citizen resident in the UK who was being "cold shouldered" by financial institutions as a result of sanctions. 

    FCA v X PLC (2013)
    Acted for PLC in connection with alleged breaches of Listing Rules – no action taken.

    Reviews

    Chambers UK 2018: Financial Crime - Band 1; Financial Crime (Corporates) - Band 2; Financial Services - Band 2

    Legal 500 2017: Business and Regulatory Crime (Including Global investigations) - Tier 2; Financial Services - Tier 2

    'He absolutely knows the law like the back of his hand and is excellent tactically. He is really good on financial crime because he is a top specialist on the FCA side.' Chambers UK (2018)

    'Provides sensible practical advice and is well suited to dealing with complex cases.' Chambers UK (2018)

    'Having him on board is fantastic as he knows how the FCA think; he is not a pushover in any way and has taken cases against them all the way.' Chambers UK (2017)

    'Extremely hard-working, and has fantastic judgement and great client care.' Chambers UK (2017)

    'Excellent in cases where the financial and the regulatory cross over.' Legal 500 (2017)

    'A good barrister with a civil/criminal crossover practice.' Legal 500 (2017)

    'He’s always helpful, always available and always responsive. Added to this, he knows the approach the FCA will take.' Chambers UK (2015)

    'He brings a background as a regulator, prosecutor and solicitor to the table.' Legal 500 (2015)

    Recent Cases

    News

    • FCA abandons insider dealing investigation

      Jason Mansell acted for a senior employee of a PLC who on multiple occasions and in breach of internal policy traded in his employers' securities at times when the FCA suspected he might have been in possession of price sensitive information.,    After a ...

    • Jason Mansell and Rachna Gokani act for RBS Trader in FCA LIBOR Investigation

      Jason Mansell and Rachna Gokani acted for former RBS trader Neil Danziger in connection with contested regulatory proceedings before the RDC arising out of the FCA’s investigation of LIBOR. Jason and Rachna were instructed by Ben Rose and Charles Ku...

    • RDC direct FCA to discontinue insider dealing case

      Matter concerned a bank employee who was alleged to have passed price sensitive information.

    • Jason Mansell acts for CEO in FCA dishonesty probe - RDC directs no action

      Following a contested hearing, the FCA's own Regulatory Decisions Committee has directed that no action should be taken against a CEO of a former regulated firm in connection with allegations concerning the alleged appropriation of  client monies. Jason w...

    • Jason Mansell acts for trader in FCA LIBOR probe - RDC directs no action

      As reported in the Telegraph and other newspapers, the FCA's own Regulatory Decisions Committee has directed that no action should be taken against a former senior trader at UBS accused of alleged LIBOR manipulation.      Jason  Mansell was instructed b...

    • Jason Mansell advises the Moorhouse Group Limited in FCA probe.

      Jason Mansell acted on behalf of the Moorhouse Group Limited (Andrew Katzen at Hickman Rose instructing)  in relation to the FCA's investigation concerning the sale of add on products to new commercial customers during 2012.   Instructed from the outset a...

    Articles