In re Finucane’s Application for Judicial Review [2019] UKSC 7

Geraldine Finucane sought a public inquiry into the 1989 murder of her husband, a solicitor, by loyalist paramilitaries in Northern Ireland. Allegations concerned collusion by state agents. The government had promised an inquiry, but in 2011 decided instead to commission an independent review without powers to compel witnesses. She challenged that change of course and argued that the investigations had not discharged the state's procedural obligation under Article 2. The Supreme Court considered both the legitimate expectation created by the promise and the adequacy of what had actually been investigated.

Could government lawfully depart from its promise of a public inquiry, and had the investigations already undertaken satisfied the procedural obligation under Article 2 to investigate the killing?

The Supreme Court allowed the appeal in part. It did not hold that the government was obliged to implement the earlier promise by establishing the requested public inquiry, and it rejected the allegation that the later decision-making process was shown to be a sham. It nevertheless declared that an investigation complying with Article 2 had not yet occurred. The existing review lacked the necessary capacity to resolve important questions about state involvement in the murder. The court did not prescribe the precise form of the further investigation required. Its discussion of legitimate expectation also resisted treating detrimental reliance as an indispensable requirement across every category of undertaking or policy statement.

A clear governmental promise can create a legitimate expectation, but departure may be justified on public-law grounds. Separately, the investigations considered in Finucane had not fulfilled Article 2’s procedural obligation; that finding did not itself order a public inquiry.

Finucane keeps two questions separate: whether government could depart from a promise of an inquiry, and whether its investigative response satisfied Article 2. Mrs Finucane did not secure an order enforcing the promised public inquiry, but obtained a declaration that an Article 2-compliant investigation had not occurred. The judgments discuss detrimental reliance without making it a universal prerequisite for every legitimate expectation. Later developments in the investigation must be checked independently rather than inferred from the court’s 2019 remedy.