How to read what a UK Supreme Court judgment decided

A court headline can put the winner and loser in a single line. The judgment answers a more precise question. To see how that works, take the UK Supreme Court’s 2024 decision in Finch v Surrey County Council, about what an environmental assessment had to cover before a council granted permission for a particular oil project.

Identify the case and the question before the court

The court gives the case the neutral citation [2024] UKSC 20 and lists the judgment date as 20 June 2024. The citation points to the same judgment even when a headline uses only a short version of the parties’ names. The court’s press summary identifies the appeal from the Court of Appeal and sets out the background, result and reasons.

Start with the legal question. The development would extract oil at Horse Hill. The environmental assessment covered emissions at the site, while omitting emissions from the eventual burning of the extracted oil. The appeal concerned whether those later emissions were effects of the project that the assessment had to cover under the applicable rules.

Read the result and then the reasons

By three votes to two, the Supreme Court allowed the appeal and held that the council’s decision was unlawful. The majority reasoned that, on the agreed facts, the oil would be burnt if the project went ahead and the resulting emissions could be estimated. The majority treated those emissions as effects within the required assessment.

The full judgment identifies the justices who joined each opinion. Lord Leggatt wrote the majority reasons, joined by Lord Kitchin and Lady Rose. Lord Sales wrote a dissent joined by Lord Richards. A passage from the dissent records a judge’s reasons for disagreeing with the result, so note which opinion you are reading before using a paragraph.

Keep the conclusion tied to the case

The decision concerned the lawfulness of an environmental assessment and the permission based on it. The judgment explains that assessment brings environmental effects into the decision process. When comparing coverage, pay attention to whether a report is describing the required assessment, the particular permission or future decisions about other projects.

The court describes its press summary as an aid to readers and identifies the full judgment as authoritative. Use the summary to locate the issue and outcome, then follow its paragraph references to the relevant parts of the judgment. Keep the case citation, date and paragraph number with anything you cite.