4 Stone Buildings stands out for its ‘significant strength in depth for civil fraud disputes’. The team has an excellent reputation for acting in complex, high-profile fraud cases; Sharif Shivji KC and Emma Horner represented Credit Suisse in Republic of Mozambique v Credit Suisse & ors, the long-running "tuna bonds" dispute arising from a $2bn funding arrangement involving allegations of bribery, conspiracy and fraud. In a separate matter, Alexander Cook KC and Guy Olliff-Cooper successfully represented a defendant before the Court of Appeal in Mex Group Worldwide Ltd v Ford & Ors, involving an application to discharge a €85m worldwide freezing injunction, concerning allegations of unlawful means conspiracy, obtained in support of proceedings in Scotland.
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Profile
Position
Guy specialises in commercial disputes with a particular emphasis on civil fraud and cryptoassets. He frequently appears unled in both the High Court and the Court of Appeal, often against silks. He enjoys a busy offshore practice having been called to the Bar of both the BVI and the DIFC.
In September 2025, Guy was appointed to the Attorney General’s B Panel of Counsel.
Guy’s recent reported cases include:
• Dos Santos v Unitel SA [2025] KB 438. A £580 million claim against Isabel Dos Santos, daughter of the former President of Angola, in relation to sums allegedly due under various loan agreements; now the leading authority on the merits threshold for freezing relief.
• Mex Group Worldwide Ltd v Ford [2023] EWHC 3394 (KB). An application for a freezing injunction under s.25 of the Civil Jurisdiction and Judgments Act 1982 in support of proceedings in Scotland valued at €68.5 million based on an alleged unlawful means conspiracy to induce breach of a consent order.
• Therium Litigation Funding A IC v Bugsby Property LLC [2023] Costs LR 1641. An application by a litigation funder for an asset preservation order over £27.5 million of settlement proceeds.
Career
Called: 2015
Attorney General’s B Panel: 2025
Memberships
Commercial Bar Association
Chancery Bar Association
Young Fraud Lawyers Association
Education
BPTC, City Law School (Outstanding)
GDL, City Law School (Distinction)
BA (Hons), Philosophy & Theology, Oxford
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Testimonials
Collated independently by Legal 500 research team.
- 'The clerks at 4 Stone are superb. Extremely attentive, always available, and looking for ways to make every matter work. Ryan Tunkel and Ben Lashmar are a brilliant combination.'
- '4SB's clerking team is excellent. Ben Lashmar and Ryan Tunkel are extremely dependable, personable and commercially minded.'
- 'Very helpful and friendly.'
- 'A very strong bench of silks and juniors.'
- 'The ability and experience of the barristers across the board, at every level, is phenomenal.'
- 'A formidable set.'