Commercial Law forms the core of Gerard’s practice, advising and representing clients in a wide range of business litigation and arbitration, often with an EU or international element. From his postgraduate studies, he has particular interests in restitution and the conflict of laws.

In the field of Competition Law, Gerard has appeared before all levels of domestic courts and tribunals from the Supreme Court to the Competition Appeal Tribunal. He also advises on procedural issues. He is a contributing author of Competition Litigation: UK Practice and Procedure (OUP).

In the area of Public Law, Gerard has particular expertise acting for both claimants and defendants in commercial judicial review cases, where the regulatory issues often overlap with his other fields of practice. He has also been involved in significant cases with a constitutional aspect, drawing on his experience of teaching Constitutional Law.

Gerard has acted for a range of clients in the energy sector including National Grid, Scottish Power and UK Power Networks, as well as the regulators Ofgem and the Utility Regulator of Northern Ireland. In addition to commercial issues arising in this field, he has broad experience of regulatory issues in the context of price controls, having acted in several CMA appeals on the subject, and under the Electricity Act 1989 and Gas Act 1986 more generally.