W80, R. (on the application of Officer) v Director General of the Independent Office for Police Conduct & Ors

Factual and Procedural Background

The Appellant, a specialist firearms officer, fatally shot the Deceased during an armed police operation in December 2015 that was intended to prevent a prison-break plot. No criminal charges were brought after an investigation by Agency A (the policing oversight body) and a review by the Crown Prosecution Service. Agency A nevertheless directed the Appropriate Authority (Agency B) to convene gross-misconduct proceedings on the ground that the Appellant’s use of force breached the standard set out in the Police (Conduct) Regulations 2012.

The Appellant sought judicial review of Agency A’s direction, arguing that Agency A had used the wrong legal test for self-defence. The Divisional Court (Judge Flaux LJ and Judge Parker) quashed the direction, holding that the criminal law test applied. The Court of Appeal (Judge Vos C, Judge Macur and Judge Davies) allowed Agency A’s appeal, concluding that disciplinary panels should apply only the wording of the 2012 Regulations (“necessary, proportionate and reasonable in all the circumstances”). The Appellant appealed to the Supreme Court.

Legal Issues Presented

1. What is the correct legal test for self-defence in police disciplinary proceedings under the Police (Conduct) Regulations 2012?
2. In particular, should disciplinary panels apply:
   • (a) the criminal law test (honest belief, even if unreasonable);
   • (b) the civil law test (honest and reasonable belief); or
   • (c) the wording of the Regulations without importing either test?

Arguments of the Parties

Appellant's Arguments

• The criminal law test has traditionally governed police use of force and remained implicit in earlier regulations that used the word “knowingly”.
• Training, national guidance and paragraph 4.4 of the 2014 Code of Ethics all proceed on the basis that the criminal test applies; applying a different standard would be unfair.
• Uniformity across the United Kingdom (including Northern Ireland and Scotland) supports use of the criminal test.
• The criminal test is compatible with Article 2 of the European Convention on Human Rights; therefore no higher standard is required.

First Respondent's Arguments (Agency A)

• The civil law test better reflects the objective wording of the 2012 Regulations and promotes public confidence by allowing scrutiny of unreasonable mistakes.
• The Taylor Report introduced an employment-based disciplinary model aimed at learning and development rather than blame, which aligns with the civil standard.
• Omission of the word “knowingly” in the 2008 Regulations shows a deliberate move away from the criminal test.
• Codes and guidance issued after the Regulations cannot modify the statutory standard.

Second Respondent's Arguments

• Supported Agency A, emphasising the need for accountability where lethal force is used based on an unreasonable mistake.

Interveners

• First Intervener supported the Appellant.
• Second Intervener adopted a neutral stance.
• Third Interveners contended that, if a distinct test were needed, the Court of Appeal’s approach should stand.

Table of Precedents Cited

Court's Reasoning and Analysis

The Supreme Court (Judge Lloyd-Jones and Judge Stephens delivering the opinion of the Court) rejected the Court of Appeal’s “open wording” approach, holding that:

1. Any assessment of necessity, proportionality and reasonableness must begin with a defined factual matrix; that requires employing the established two-limb framework (trigger and response).
2. Textual indicators: the deliberate removal of “knowingly” from the 2008 Regulations signalled a move away from the criminal test; every other Standard of Professional Behaviour is expressed objectively.
3. Purpose: The Taylor Report re-oriented discipline toward learning, development and public confidence. A standard that ignores the reasonableness of mistakes (the criminal test) would frustrate those aims.
4. Regulatory hierarchy: later guidance (the 2014 Code of Ethics and Home Office Guidance) cannot override the Regulations; paragraph 4.4 of the Code, which mirrors the criminal test, is “wrong and misleading”.
5. Comparative materials (Northern Ireland, Scotland, Article 2 ECHR) and historical coherence arguments cannot displace the clear textual and purposive reading of the Regulations.

Accordingly, the Court concluded that the civil law test—requiring an honest and reasonable belief as to the threat—governs police disciplinary proceedings.

Holding and Implications

APPEAL DISMISSED.

The disciplinary panel must apply the civil law test of self-defence when judging police use of force. The direction by Agency A to commence misconduct proceedings against the Appellant therefore stands.

Implications include:

• All future police misconduct hearings in England and Wales must evaluate officers’ beliefs for both honesty and reasonableness.
• Training materials and the Code of Ethics require revision to reflect the civil test.
• The decision underscores the disciplinary system’s focus on learning, public confidence and accountability, rather than mirroring the criminal standard.
• The Court invited legislative and regulatory simplification to provide clearer guidance on police use of force.