Able to draw on the strength of its considerable international network of offices, Jones Day‘s London-based Investigations and White Collar Defense team is regularly engaged by global clients for its capabilities in complex, cross-border mandates. Head of the London Global Disputes practice, Sion Richards is a highly active partner engaged in multijurisdictional investigations covering fraud and corruption. A key contact for financial institutions and corporates, Adam Brown’s recent mandates include high-profile proceedings concerning misfeasant trading, while Alex Chalk KC, who joined the firm in early 2025, is highly experienced in criminal investigations involving the SFO and the FCA. Dual-qualified (English and French) Karl Moussalli is also recommended.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Sion Richards is an absolute power-house: strategic, hugely experienced, charming, clever, imaginative, dedicated.'
- 'Adam Brown is a superb litigator – exceptionally intelligent with a real understanding of his clients and what they want to achieve.'
- 'Karl Moussalli has expertise across civil and common law jurisdictions, which means he knows how to use his arsenal in all countries, and spots opportunities, risks, and effective ways forward where most can’t.'
- 'Sion Richards has remarkable intuition. He instinctively knows which levers to pull to give his clients the best prospects of achieving meaningful success.'
- 'Adam listens to what we have to say and uses his deep experience to explore scenarios and solutions with us, providing clear and considered advice. His high level of engagement is demonstrated by his case knowledge and accessibility.'
- 'Alex Chalk KC brings a lot thanks to his government experience.'
Work highlights
On behalf of the liquidator of BHS, conducted seven years of investigations into the collapse of BHS, leading to claims since 2017 valued at in excess of GBP 250 million.
Practice head
Sion Richards
Other key lawyers
Adam Brown; Alex Chalk KC; Karl Moussalli