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Our Mediators

Augustus Ullstein QC

Augustus Ullstein QC

Augustus Ullstein QC is a barrister at 39 Essex Street who specialises in product liability, professional negligence, personal injury, multi-party actions and insurance law. He is recommended for Product Liability in Chambers & Partners 2007 and 2008, the latest edition describing him as a "well-known player" who has the "ability to roll up his sleeves and deal with lay clients, who tend to find the area bewildering". he is also a co-author of "Compensation for Personal Injury in English, German and Italian Law" published by Cambridge University Press.

Quotes from Directories

Recommended for Product Liability in Chambers & Partners 2007. The Legal 500 2005 and 2004 also recommended him, describing him as "remarkably tenacious". He is recommended in Legal Experts 2007, 2006 and 2005.


Recommended for Product Liability in Chambers & Partners 2007. The Legal 500 2005 and 2004 also recommended him, describing him as "remarkably tenacious". He is recommended in Legal Experts 2007, 2006 and 2005.

Practice Areas

Professional Negligence (all professions), Personal Injury, Product Liability, Multi-party actions, Insurance, General Common Law.

Shirley Hennessey

Shirley Hennessey


Professional Association

Personal Injury Bar -Association
Professional Negligence Bar Association

Practice Areas

  • Personal Injury
  • Public Liability
  • Employers Liability
  • Industrial Disease
  • Health & Safety
  • Group Litigation
  • General Civil Law
  • Housing Disrepair
  • Dental Negligence
  • Product Liability
  • Professional Negligence
  • Clinical Negligence
  • Costs Landlord & Tenant Inquests
Michael Turner

Michael Turner

Solicitor, Business & Legal Coach, Consultant & Trainer and Commercial Mediator As Founder and Managing Director of Citius, Mike heads the team of Coaches, Consultants and Trainers. A Lawyer by profession, he brings a wealth of knowledge and experience to the market.

He provides consultancy, coaching and training services to both general business markets and the legal profession. He is also a qualified Mediator, through the Academy of Experts, enabling him to offer an alternative way to help businesses resolve commercial disputes. Mike works in Legal Public and Commercial Client sectors in the delivery of Advanced Professional Training in Investigative Practice (Regulation of Investigative Powers Act and Data Protection Act) Expert Witness Training in report writing and courtroom skills, Witness Preparation, Medico Legal Training and General Legal Skills training accredited by the Law Society towards CPD requirements.

Adam Merrett

Adam Merrett

FCCA, MAE, MEWI, QDR, Chartered Certified Accountant, Partner of Wilkins Kennedy Chartered Accountants

Adam has specialised in Forensic Accounting matters since 1998 providing written and oral evidence in civil and criminal cases.

Adam has been a Partner of Wilkins Kennedy Chartered Accountants, since joining in February 1997, a top 30 firm, which has approximately 43 partners, 300 staff and 12 offices.

Adam was appointed head of the forensic & dispute resolution team at Wilkins Kennedy in 2005. His experience includes more than 25 years general practice accountancy work, preparation of financial and management accounts, financial, taxation and business advice for limited companies, partnerships and sole traders, covering a wide variety of trades and professions. Adam also specialises in company secretarial services assisting the corporate finance department in all areas of company restructuring.


Full member of The Chartered Association of Certified Accountants (1987)
Fellow of The Chartered Association of Certified Accountants (1992)
Associate member of the Institute of Chartered Accountants in England and Wales (1998)
Member of The Expert Witness Institute (1998), having participated and been duly accredited under the Cardiff University Bond Solon Expert Witness Certificate training scheme.
Member of The Academy of Experts (2007)
Fully trained and accredited by The Academy of Experts as a Commercial Mediator, QDR (Qualified Dispute Resolver) and a proponent of Alternative Dispute Resolution


Appointments by The Crown Prosecution Service in cases including fraudulent factoring, use of client funds by a solicitor and insurance fraud.

Party and joint instructions on behalf of companies regarding breach of warranty claims, claims against suppliers, VAT fraud and insurance loss.

Party and joint instructions in respect of matrimonial cases including business and share valuations. Party and joint instructions in respect of personal injury, loss of earnings and goodwill claims.

Party appointments dealing with professional and partnership disputes.

Party appointments in relation to criminal cases under the Proceeds of Crime Act 2002.

Nigel O'Neill

Nigel O'Neill

Nigel qualified in 1972 with Moores Rowland (Accountants). In 1974 he was seconded to the associated office in Johannesburg, RSA to help establish the management consultancy division. He returned to the UK in 1976 to be lead manager in the special investigations division and finance director of the IT division. On being made a partner in 1980 Nigel took over the running of the Hong Kong office for four years. Between 1984 and 1997 he was lead partner in the special investigations, management consultancy and forensic accounting divisions. During this period he also worked in Luxembourg and Monaco. In 1997 Nigel became a partner with the successor firm, MRI Moores Rowland, where he was firstly responsible for forensic accounting and latterly for regulatory consulting. In April 2004, he and Alex Brown established Amicus Forensic, based in Gray's Inn Square.

Qualifications & Forensic Work

Nigel is a Fellow of the Institute of Chartered Accountants in England & Wales, and a member of The Academy of Experts, The Expert Witness Institute and the Compliance Institute. He is also a Qualified Dispute Resolver, accredited with the Academy of Experts and experienced in many different forms of Alternative Dispute Resolution.

Whilst undertaking fraud cases and corporate investigations, Nigel particularly specialises in financially regulated cases and has reported, on numerous occasions, as an investigator for the Securities and Investment Board, the fore-runner of the FSA.