
Slaughter and May is well regarded for its expertise in complex multi-jurisdictional corporate crime investigations, enforcement actions, internal reviews and compliance, with recognised strengths in sanctions, anti-money laundering and data protection. The practice is led by a trio of partners: Richard Swallow, who has a strong track record in high-profile cross-border regulatory and criminal matters; Jonathan Cotton, who regularly advises on SFO investigations across sectors including aviation, telecommunications and consumer goods; and Ewan Brown, who focuses on supporting financial institutions and has extensive experience handling mandates involving various enforcement authorities. Jonathan Clark has defended clients against allegations of deliberate wrongdoing, including cases involving alleged bribery, corruption, cartel activity and tax evasion, while senior counsels Ella Williams and Nicholas Querée are recommended for their significant involvement in cross-border investigations.
Legal 500 Editorial commentary
Key clients
- British American Tobacco
- Bombardier Inc
Work highlights
Successfully defended the Canadian aircraft manufacturer Bombardier in relation to the SFO’s investigation into suspected bribery and corruption in relation to contracts with an Asian entity.
Acted as coordinating counsel in relation to BAT’s $100m settlement with a Nigerian competition and consumer protection regulator.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Nicholas Querée
Ella Williams
Practice head
Richard Swallow; Jonathan Cotton; Ewan Brown
Other key lawyers
Gayathri Kamalanathan; Ella Williams; Nicholas Queree