James regularly acts both for and against public authorities in a broad range of public and administrative law areas beyond the planning and environmental law field. He is a former committee member of the Administrative Law Bar Association (ALBA). For cases related to planning and environmental law, please click on the relevant Practice Area links.
- R (Tewkesbury BC) v Secretary of State  EWHC 3227 (Admin) on the justiciability of challenges to reasons in decisions where the decision itself it not challenged.
- R (Piffs Elm Ltd) v Tewkesbury BC  EWHC 3248 (Admin) - on apparent bias and remedial discretion
- NEXUS Quality Contract Scheme (2015) - public inquiry into the first Quality Contract Scheme under the Transport Act 2000
- Phelps v ODA (2012) - successfully advised the Olympic Development Authority in respect of challenges to traffic regulation orders for the 2012 Games.
- Qinetiq v Portsmouth City Council (2012) – £800,000 costs application arising from judicial review proceedings (partial award and indemnity costs award secured against the Defendant despite the claim never being granted permission).
- Transport for London v Bug-Bugs and others  EWHC 2987 (QB), establishing it is not an abuse of process to seek a declaration to overturn a High Court judgment concerning the licencing of pedicabs in London.
- R (Transport for London) v The Parking Adjudicator  RTR 39, on the power of parking attendants to serve tickets by post when conventional service has been frustrated.
- Davey v Aylesbury Vale  EWHC 116 (QB), on the scope of pre-permission costs allowable in a defendant's costs order.
- R (Haw) v Westminster City Council (2006), a judicial review by the famous anti-war protester Brian Haw concerning the relationship between the right to Freedom of Expression and the licensing of loudhailers to make protests.
- R (Walmsley) v PATAS (2006) RTR 15, concerning the power of the Parking Adjudicator to consider non-statutory grounds of challenge when considering appeals.
- R (RYA) v Secretary of State (2004), a successful judicial review challenge to the legality of Yachting Safety Regulations.
- R (Westminster CC) v Mayor of London  BLGR 611, junior counsel acting on behalf of the Mayor of London and Transport for London in the successful defence of the legality of the Central London congestion charging scheme.
- R (Balchin) v Parliamentary Commissioner  EWHC 1876, junior counsel in a successful challenge to a decision of the Parliamentary Commissioner,
- in a case that eventually led to six-figure awards of compensation to the complainants.
- R (Kent County Council) v Terril (2001) ACD 27, a leading case on contempt of the Coroner's Court by non-attendance of witnesses.
- High profile advisory work such as for the Mayor of London and Transport for London, acting as junior counsel advising the Congestion Charging Scheme, Emissions related Congestion Charging and the Low Emissions Zone.