Jason has a broad commercial practice, with particular emphasis on shipping, insurance, construction, aviation, financial services, commodities and all aspects of international trade. He regularly appears as sole or junior counsel in both court and international arbitral proceedings and has extensive experience of obtaining freezing injunctions and other urgent relief in the High Court.

Recent work includes a 3-week UNCITRAL arbitration concerning an off-shore drilling dispute worth in excess of US$2bn, acting on behalf of an EU member state in an ICC arbitration worth €5bn concerned with the construction of naval submarines, a breach of confidence claim on behalf of shareholders of a major bank against two ex-Scotland Yard police officers acting as private investigators (Saab v Dangate Consulting Ltd & Ors [2019] EWHC 2602 (Comm), [2019] EWHC 1558 (Comm), [2019] P.N.L.R. 29, [2018] EWHC 546 (Comm)), and an expedited Commercial Court trial on behalf of the Fortune 500 oil and gas conglomerate Apache Corporation: Apache Beryl Ltd v Marathon Oil UK LLC [2017] EWHC 2258 (Comm), [2017] EWHC 2462 (Comm), [2017] EWHC 2504 (Comm). Jason has also recently represented a major insurer in arbitration against a FTSE 100 medical device manufacturer in a $50m coverage claim under an excess layer policy containing Bermuda Form wording.