Court Martial and the Service Justice System — the military's parallel courts
How the Service Justice System works: the Court Martial, Summary Hearings, the Service Civilian Court, the Service Complaints Ombudsman, and the boundary between military and civilian jurisdiction over service personnel.
Introduction
The Service Justice System (SJS) is the parallel court structure that applies to members of the Royal Navy, Army, and Royal Air Force, governed by the Armed Forces Act 2006 (as consolidated and substantially restated by the Armed Forces Act 2021). It comprises summary hearings before commanding officers, the Court Martial (presided over by a Judge Advocate with a board of lay members), the Service Civilian Court (for civilians abroad subject to service discipline), and an appellate route to the Court Martial Appeal Court (composed of Court of Appeal judges). The SJS deals both with service offences peculiar to the military (mutiny, desertion, malingering) and with criminal offences under English law (theft, assault, sexual offences) committed by service personnel anywhere in the world. Following the Lyons Review (2018) and the Henriques Review (2021), and after Lord Lyons' criticisms of how rape and serious sexual offences cases were investigated and prosecuted, the AFA 2021 introduced significant reforms — including the Defence Serious Crime Unit (DSCU), which operates from 1 December 2022. The civilian Crown Prosecution Service and police retain concurrent jurisdiction over most ordinary crimes; protocols govern which system takes the lead. The Service Complaints Ombudsman provides independent oversight of grievances unrelated to discipline.
In Brief
Members of the UK Armed Forces are subject to a parallel Service Justice System under the Armed Forces Act 2006 (substantially restated by AFA 2021): summary hearings before COs for minor offences; Court Martial (Judge Advocate + lay members) for serious offences; Service Civilian Court for civilians abroad; appeals to the Court Martial Appeal Court (the Court of Appeal Criminal Division). The Defence Serious Crime Unit (operational from December 2022) investigates rape and serious sexual offences; serious sexual offences in the UK now default to civilian prosecution.
Core Principles
Service discipline (Armed Forces Act 2006 Part 2) — service offences include both military-specific offences (mutiny, AWOL, disobedience) and 'criminal conduct offences' (any conduct that would be an offence under English law).
Summary hearing (AFA 2006 Pt 3) — minor offences dealt with by the Commanding Officer. Limited powers (up to 28 days' detention; service-civilian fines). Right of appeal to the Summary Appeal Court.
Court Martial (AFA 2006 Pt 4) — comprises a Judge Advocate (a civilian judge) + lay members (officers and senior NCOs). The Judge Advocate decides law and sentence; lay members determine guilt by majority. Sentences are largely the same as the Crown Court.
Service Civilian Court (AFA 2006 Pt 7) — deals with civilians (typically dependants of service personnel) subject to service discipline whilst overseas.
Court Martial Appeal Court (AFA 2006 Pt 6) — appeals lie to the CMAC, sitting as the Court of Appeal Criminal Division.
Concurrent jurisdiction — most criminal conduct offences can also be tried by the ordinary civilian criminal courts. The 'Director of Service Prosecutions / Director of Public Prosecutions Protocol' allocates lead jurisdiction; serious sexual offences committed in UK now default to civilian prosecution following Henriques.
Defence Serious Crime Unit (operational from 1 Dec 2022) — independent of the chain of command; investigates rape, serious sexual offences, and other serious crimes by/against service personnel.
Service Complaints Ombudsman (AFA 2006 Pt 14A, inserted by AFA 2015) — independent body considering complaints about service life (grievances, equality issues) outside the disciplinary system.
Key Statutes
Armed Forces Act 2006
Armed Forces Act 2021
Armed Forces Act 2015
Court Martial Appeal Court Act 1968
Leading Cases
R v Beckford (Court Martial Appeal Court)
[2021] EWCA Crim 1352
Findlay v UK
(1997) 24 EHRR 221 (ECtHR)
Cooper v UK
(2004) 39 EHRR 8 (ECtHR)
R (Cawthorn) v Nottingham Crown Court
[2020] EWHC 2376 (Admin)
Frequently Asked Questions
What is a Court Martial and how is it constituted?
A Court Martial is the senior trial court of the Service Justice System (Armed Forces Act 2006 Part 4). It is presided over by a Judge Advocate — a civilian judge appointed by the Lord Chief Justice — with a board of three to seven lay members drawn from the service (officers and senior NCOs). The Judge Advocate decides points of law and sentence; the lay members decide guilt by majority verdict (no unanimity required). It sits at the Military Court Centre in Bulford, Catterick, and Colchester.
Can a soldier be prosecuted by both the civilian courts and the Court Martial for the same offence?
Not for the same offence — autrefois convict/acquit applies. The two systems have concurrent jurisdiction over criminal-conduct offences (theft, assault, etc.) committed by service personnel; protocols between the Director of Service Prosecutions (DSP) and the Director of Public Prosecutions (DPP) determine which system prosecutes. Service offences peculiar to the military (mutiny, AWOL) can only be prosecuted in the Service Justice System.
What changed after the Lyons Review and Henriques Review?
The Lyons Review (2018) and Henriques Review (2021) recommended significant reforms, particularly around the investigation and prosecution of rape and serious sexual offences (SSOs). The Armed Forces Act 2021 established the Defence Serious Crime Unit (operational 1 December 2022) — independent of the chain of command. The protocol now defaults SSOs committed in the UK to civilian prosecution unless the DSP can demonstrate that the Service Justice System is the more appropriate forum.
Is the Court Martial compliant with Article 6 ECHR?
Yes, since reforms following the European Court of Human Rights decision in Findlay v UK (1997) 24 EHRR 221 — which held that the pre-1996 court martial system lacked sufficient independence. The current system (Judge Advocate as legally trained presiding officer; lay members independent of the prosecuting authority; right of appeal to a fully independent CMAC) was held Convention-compliant in Cooper v UK (2004) 39 EHRR 8.
What is the Service Complaints Ombudsman?
The Service Complaints Ombudsman (SCO) is an independent statutory body established under Part 14A of the Armed Forces Act 2006 (inserted by the AFA 2015). The SCO oversees the service-complaints system — grievances by service personnel about service life (bullying, discrimination, working conditions). It cannot consider matters that go to the Court Martial or summary hearings, but its work is significant in shaping cultural change. Annual reports identify systemic issues.
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