What roles do ordinary citizens play in running the justice system?
The roles citizens play within the legal system, including juror, magistrate, witness, special constable and Police and Crime Commissioner, and why citizen participation is vital to justice.
A focused answer for AQA GCSE Citizenship Studies on the roles citizens play within the legal system, including juror, magistrate, witness, special constable and Police and Crime Commissioner, and why citizen participation is vital to justice.
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What this dot point is asking
AQA wants you to know the roles ordinary citizens play in making the justice system work, and why that participation matters. This Rights and responsibilities topic (Paper 1 Section B) is tested through "Describe" and "Explain" questions on roles such as juror, magistrate, witness, special constable and Police and Crime Commissioner. The examiner rewards accurate knowledge of what each role involves, plus the bigger point that justice in the UK depends on citizens, not just professionals: a system run entirely by paid officials would be less independent and less trusted. The skill is to name a role precisely and then explain its contribution to a fair system.
Why citizens matter to justice
A central idea in this topic is that justice is not something simply done to citizens by the government; citizens help to deliver it. Trial by jury means a person's guilt is decided by their peers, not by the state alone. Magistrates bring ordinary judgement to local courts. Witnesses make trials possible by providing evidence. This participation matters because it builds trust and independence: people are more likely to accept the system as fair if their neighbours, not only officials, are involved, and decisions are harder to manipulate when ordinary citizens hold real roles. AQA expects you to connect each role to this principle, not just list job titles.
Jurors and magistrates
Jurors and magistrates both decide guilt, but in different courts and ways. A jury sits in the Crown Court for serious cases; its members are everyday citizens with no legal training who weigh the evidence and reach a verdict, while the judge handles the law and sentencing. Magistrates sit in the magistrates' court, which handles most criminal cases; they are unpaid volunteers who are trained but need not be lawyers, and they decide both verdict and sentence for less serious offences, advised by a legal adviser. Jury service is a duty most adults can be called to perform, whereas becoming a magistrate is something a citizen chooses to apply for. Knowing which court each sits in, and that neither needs to be a qualified lawyer, is the precise detail examiners look for.
Witnesses, special constables and Police and Crime Commissioners
A witness is a person who gives evidence in court about what they saw or know, so the facts can be tested fairly; without witnesses willing to come forward, many trials could not proceed. A special constable is a trained volunteer police officer who works alongside regular officers and has the same powers, giving up their own time to support policing in their community. A Police and Crime Commissioner (PCC) is an elected official who holds the local police force to account, sets its priorities and budget, and represents the public's concerns about crime; because PCCs are elected, citizens influence local policing through how they vote. Each of these roles shows the same principle from a different angle: the justice system works because citizens choose to serve in it, whether by giving evidence, volunteering as an officer or electing those who oversee the police.
Exam-style practice questions
Practice questions written in the style of AQA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
AQA 20184 marksExplain the role of a jury in a criminal trial.Show worked answer →
A Paper 1 Section B "Explain" question (AO1 plus AO2). Define the role and develop why it matters.
A jury is a group of twelve ordinary citizens, chosen at random from the electoral register, who sit in a Crown Court trial. Their job is to listen to all the evidence and decide whether the defendant is guilty or not guilty.
The jury decides the facts, while the judge decides the law and passes any sentence. This matters because it means ordinary citizens, not the state alone, decide a person's guilt, which is an important protection of liberty.
Markers reward an accurate definition (random citizens, decide the verdict) plus a developed point about why trial by jury matters.
AQA 20213 marksDescribe two ways a citizen can take part in the justice system.Show worked answer →
A Paper 1 "Describe" question (AO1). Identify roles and add a developing detail.
Way one: serving as a juror. A citizen called for jury service listens to the evidence in a Crown Court trial and joins eleven others in deciding the verdict.
Way two: becoming a magistrate. A magistrate is a trained volunteer who hears less serious cases in the magistrates' court and decides the verdict and sentence, without needing to be a qualified lawyer.
Other acceptable roles include witness, special constable and Police and Crime Commissioner. Markers reward two clearly identified roles, each with a developing detail.
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