International, Sanctions & Extradition
Gavin has an established track-record in navigating export control challenges and in leading corporate investigations where end-user concerns and proliferation risks have been identified.
He has considerable experience in the overlap between export controls and financial and trade sanctions, shaping self-disclosures, averting criminal proceedings and negotiating compound and monetary penalties.
In addition, he advises defence sector entities on notifiable acquisitions under national security and investment law.
Export Controls
Gavin has acted, in criminal proceedings, for:
- A UK company for exports involving breaches of the UN Chemical Weapons Convention
- An individual for exporting to Iran pre-cursor chemicals capable of being deployed in a ‘suitcase dirty-bomb’
Recent advisory work includes corporate and law enforcement investigations into the export by UK companies of:
- Submarine technology (China)
- Advanced vehicle components (Russia and the United States)
- Software for use in semi-conductor manufacturing (global)
- Cryptographic software (Russia)
- High-performance machine parts (Iran)
Financial & Trade Sanctions
Gavin regularly advises businesses and individuals on the impact of financial and trade sanctions and is currently acting for:
- A UK company for possible breaches of trade sanctions (Iran)
- A number of UK companies whose interests and operations have been affected by the invasion of Ukraine in 2022 (Russia)
Gavin has been instructed in three ‘firsts’:
- The first criminal case alleging breaches of the financial sanctions applied against Russia – (Southwark Crown Court, 2025)
- The first criminal case alleging breaches of disclosure within the regulated sector linked to counter terrorism financing sanctions (Central Criminal Court, 2025)
- The first attempted extradition to the United States of a UK national for alleged facilitation of breaches of U.S. financial sanctions imposed against Oleg Deripaska (Westminster Magistrates Court, 2023)
National Security & Investment
Gavin regularly advises businesses:
- Operating within the 17 sensitive sectors of the UK economy on compliance with the National Security and Investment Act 2021
- On shaping pre and post deal notifications to the Cabinet Office, Investment Security Unit
- With Ministry of Defence contracts on compliance with the UK’s Facility Security Clearance Policy
Extradition
Gavin has made numerous submissions to Interpol in relation to: the removal of Red Notices; accessing information; the (dis)application of preventative measures; and the deletion of data.
Having acted for various requesting states, including the United States, the Russian Federation and many European judicial authorities, Gavin’s extradition practice is now focused on defending individuals charged with, or convicted of, serious offences including murder, terrorism and fraud.
Highlights include preventing the extradition to:
- Germany of a UK national for tax evasion
- UAE of the UK director of an aviation business for fraud
- The Czech Republic of a UK businessman charged with offences arising from a ‘lost weekend’ in Prague