No-Prosecution Notices and Abuse of Process in Historic Sexual Offence Court Martial Proceedings

Case: Jones, R. v [2026] EWCA Crim 925 (CA (Crim Div), on appeal from the Military Court at Catterick)
Date: 9 June 2026
Panel: Lord Justice Edis (Vice-President), Mr Justice Griffiths, Ms Justice Norton

1) Introduction

The applicant, a former teacher at a British Armed Forces school in Germany, was convicted at a Court Martial of eight counts of indecent assault relating to alleged abuse in 1981–1982 against three complainants (referred to as C1–C3), who were aged seven or eight at the time. He was sentenced to a total of ten years’ imprisonment.

The appeal focused on whether the convictions were unsafe because the proceedings should have been stayed as an abuse of process—primarily in relation to C1’s counts—given: (i) extreme delay, loss of potentially relevant material (including destroyed police records from 1992), and deceased witnesses; and (ii) a 2005 Service Prosecuting Authority notice under s.83B(4) Army Act 1955 stating that Court Martial proceedings were not to be instituted, said to be an unequivocal assurance upon which the applicant relied.

2) Summary of the Judgment

The Court of Appeal granted an extension of time and granted leave, but dismissed the appeal.

It held that:

• The 2005 s.83B(4) notice did not amount to the kind of unequivocal, irreversible “no prosecution” promise required to ground “limb 2” abuse of process; it was not a s.83B(13) direction producing a bar equivalent to autrefois acquit, and it was served via solicitors.
• In any event, the later emergence of two further complainants fundamentally altered the position, and justified prosecution even if an earlier assurance had existed.
• As to “limb 1” (fair trial), the delay issues and resulting prejudice were fully explored before the Board, and the judge’s delay direction was in accordance with good practice; the trial was fair and the convictions safe.

The Court also noted (without altering the outcome) that the sentence imposed below was unlawful because a “special sentence for an offender of particular concern” under s.278 Sentencing Code should have been imposed for a relevant abolished offence, but the Court had no power to increase sentence on the applicant’s appeal.

3) Analysis

3.1 Precedents cited and how they shaped the outcome

(a) The two-limb abuse of process framework: The Court reiterated the orthodox structure from R v Horseferry Magistrates Court ex parte Bennett [1994] 98 Cr App R 114: [1994] AC 42:

• Limb 1: no fair trial can take place (a stay is required regardless of prosecutorial “fault”).
• Limb 2: it would be an affront to justice to try the defendant at all, even though a fair trial could be held (often involving serious state misconduct or unfairness).

This mattered because the judge’s pre-trial ruling framed “fault” as a “key question”. The Court of Appeal corrected the analytical point: “fault” has no necessary role in limb 1. However, the Court treated this as a matter of formulation rather than outcome: the real questions—fairness and affront—had been addressed on the facts.

(b) “No prosecution” representations: The Court relied on the guidance quoted from R v Abu Hamza [2006] EWCA Crim 2918, [2007] 1 Criminal Appeal Report 27:

The Court used this in two ways:

• To assess whether the 2005 service notice was truly “unequivocal” in the relevant legal sense.
• To hold that, even if it were, later “new facts” (two additional complainants) would justify the prosecution.

3.2 Legal reasoning

(a) The 2005 notice: “unequivocal” text vs statutory/legal context
The applicant relied on the bare wording of the 2005 notice: Court Martial proceedings “are not to be instituted”. The Court accepted there was no explicit caveat (of the kind sometimes included in CPS communications) warning that prosecution could follow if circumstances changed.

But the Court treated the statutory architecture as decisive. It drew a sharp distinction between:

• s.83B(4) Army Act 1955: notification that proceedings are not to be instituted (a decision at that time); and
• s.83B(13) (and s.134 Army Act 1955): a direction with the effect of providing a defence equivalent to autrefois acquit.

Since the reviewing lawyer (Lieutenant Colonel M J Culver) did not give a s.83B(13) direction, the notice was not a legal “once-and-for-all” bar. A further strand was practical: the notice was sent via solicitors, so the recipient had the benefit of legal advice; a competent lawyer would understand it did not close the door to future prosecution if the evidential position shifted.

(b) “New facts” and the step-change in the evidential picture
The Court considered it critical that, in 2005, only C1’s allegations were under consideration and the reviewing lawyer’s decision was driven by the perceived lack of support/corroboration and prospects of conviction. The later emergence of C2 and C3—appearing to have come forward independently—was a paradigmatic “new facts” scenario under Abu Hamza, justifying a different prosecutorial decision.

This is an important nuance: the Court did not require the new evidence to “prove” the earlier complainant’s account at the abuse-of-process stage. It was sufficient that the new complainants fundamentally altered the overall prosecutorial assessment and undermined any claim to finality.

(c) Limb 1 fairness: delay, lost material, and the trial process
On the fairness limb, the Court’s reasoning was trial-process-centred. It accepted the applicant’s points as to the severe delay and the concrete prejudice relied on (destroyed police records, deceased caretaker/headmistress, disputed “door” issue, and the inability to test consistency against a 1992 account).

However, it emphasised:

• Those matters were “fully ventilated” in evidence, including by the applicant, and addressed in closing.
• The judge’s direction on delay—tailored to the facts and explicitly linking prejudice to the standard of proof—was “in accordance with good practice”.
• The Board could evaluate reliability and fairness with those warnings in mind; the appellate court would not re-try those assessments absent legal misdirection or a conviction-safety concern.

The Court’s conclusion—“a fair trial resulting in fair convictions”—was also influenced by the overall evidential context: three complainants, with similarities and differences, and a Board that evidently accepted their accounts despite the defence criticisms.

3.3 Impact

• Military justice and prosecutorial finality: The decision signals that service “no proceedings” notices should not be treated as irrevocable unless they are made under the specific statutory mechanism conferring a bar. Defendants seeking to rely on “finality” arguments must engage with the precise statutory route used, not merely the wording of the notice.
• Assurances and legal advice: Where communications are routed through lawyers, courts may be less receptive to claims that a defendant reasonably understood a decision as permanently foreclosing prosecution.
• Historic sexual allegations: The judgment reinforces a recurring appellate theme: extreme delay and lost material do not automatically make a trial unfair; the question is whether the trial process (disclosure of gaps, exploration of prejudice, tailored directions) enabled the fact-finder to evaluate the case fairly.
• Sentencing legality in legacy offences: The Court’s closing observation is a practical reminder that “abolished offences” can trigger modern sentencing consequences (here, offender of particular concern), and that unlawful leniency may sometimes be irremediable on a defendant’s appeal.

4) Complex concepts simplified

• Abuse of process (two limbs):
  • Limb 1: “We cannot hold a fair trial at all” (e.g., key evidence is missing so the defence cannot properly answer the case). If that is true, the case must stop, regardless of who is to blame.
  • Limb 2: “Even if we could hold a fair trial, it would be wrong to try this person” (e.g., because the state acted in a way that makes prosecution an affront to justice, such as reneging on a truly final promise).
• “Unequivocal promise not to prosecute”: Not every decision “not to proceed” counts. Courts look for a clear, authoritative commitment of finality, plus reliance causing detriment. Even then, genuinely new information can justify a later prosecution.
• Autrefois acquit: A plea meaning “previously acquitted”—a bar preventing a person being tried again for the same offence. The Court treated the s.83B(13) mechanism (not used here) as the route that could create an equivalent protection in the service context.
• “Safety” of convictions: On appeal, the question is not whether the appellate court would have convicted, but whether the convictions are safe in light of legal directions, fairness, and the evidence as a whole.

5) Conclusion

[2026] EWCA Crim 925 confirms that a service decision notice under s.83B(4) Army Act 1955 is not, without a statutory “bar” direction, an irrevocable shield against future prosecution—particularly where later, independent complainants come forward and transform the evidential landscape. It also re-emphasises that, in historic sexual offence cases, the appellate focus is on whether the trial process fairly confronted delay-induced prejudice through evidence, argument, and tailored directions, rather than treating delay as determinative.