The UK Legal System Explained: Civil Law, Criminal Law and Your Rights
Legal · Guide
The UK Legal System Explained: Civil Law, Criminal Law and Your Rights
Most people will deal with the legal system at some point in their lives, whether as a victim, a witness, a party to a dispute or someone seeking to enforce their rights. This guide explains the basics in plain English, without assuming you know anything about the law.
This guide is for information only
This article explains how the UK legal system works in general terms. It is not legal advice. If you have a specific legal problem, contact Citizens Advice (0800 144 8848) or a solicitor. If you are in immediate legal difficulty, call 999 for emergencies or 101 for non-emergency police matters.
Quick read: key points
- The UK has two distinct legal systems: criminal law, which the state enforces against those who break society’s rules, and civil law, which individuals use to resolve disputes and seek compensation when they have been wronged.
- In criminal cases, guilt must be proved beyond reasonable doubt. In civil cases, the standard is lower: the balance of probabilities (more likely than not).
- 95% of criminal cases are heard in Magistrates’ Courts. Serious cases go to the Crown Court. Civil cases mostly start in the County Court.
- You have the right to free legal advice when you are arrested. You have the right to a fair trial. You have the right to appeal a verdict. These rights exist regardless of your nationality or immigration status.
- Legal aid is available but severely restricted since 2013. Civil representation certificates fell from 146,000 in 2012/13 to 110,000 in 2024/25. Around 80% of private family law cases now involve at least one person with no legal representation.
- Free help is available. Citizens Advice, law centres, Shelter, the Bar’s free representation unit and many others offer free legal guidance and sometimes representation. You do not have to face the legal system alone.
Key terms
| Term | What it means |
|---|---|
| Criminal law | The body of law that defines actions which are offences against society as a whole. When someone breaks criminal law, the state (through the Crown Prosecution Service) brings the case to court. The purpose is to punish and deter. |
| Civil law | The body of law that governs disputes between private individuals, businesses or organisations. The person who was harmed brings the case to court. The purpose is to compensate and remedy. |
| Claimant | The person bringing a civil case to court. They claim that the defendant has wronged them in some way. |
| Defendant | In a civil case, the person or organisation being sued. In a criminal case, the person accused of committing an offence. |
| Prosecution | The party bringing criminal charges. Usually the Crown Prosecution Service (CPS) acting on behalf of the state. |
| Burden of proof | The obligation to prove a case. In criminal law, the prosecution must prove guilt. In civil law, the claimant must prove their case. |
| Beyond reasonable doubt | The criminal standard of proof. A jury must be sure the defendant is guilty. If there is reasonable doubt, the defendant must be acquitted. |
| Balance of probabilities | The civil standard of proof. The claimant must show that their version of events is more likely to be true than not. Roughly 51% likely is enough. |
| Tort | A civil wrong. Negligence, defamation, trespass and nuisance are examples of torts. A person who commits a tort can be sued for damages. |
| Damages | Money awarded to a claimant who wins a civil case. Intended to put them back in the position they would have been in if the wrong had not occurred. |
| Legal aid | Government-funded legal help for people who cannot afford to pay for legal advice or representation. Significantly reduced since 2013. |
| Litigant in person | Someone who represents themselves in court without a lawyer. Numbers have risen sharply since legal aid cuts in 2013. |
| Rule of law | The principle that everyone, including the government, is subject to and accountable under the law. A foundational principle of the UK legal system. |
Criminal law: the basics
Criminal law is the set of rules that define what behaviour society considers so harmful that it must be prohibited and punished. When someone breaks criminal law, it is treated as an offence against all of us, not just against the individual who was directly harmed. This is why criminal cases are brought by the state rather than by the victim.
The Crown Prosecution Service (CPS) decides whether to bring a criminal prosecution. It applies two tests: whether there is sufficient evidence to provide a realistic prospect of conviction, and whether it is in the public interest to prosecute. The police investigate and gather evidence. The CPS decides whether to charge.
| Type of offence | What it means | Where it is tried |
|---|---|---|
| Summary offence | Less serious crimes such as speeding, minor assault, fare evasion and most motoring offences. Cannot be tried by a jury. | Magistrates’ Court only |
| Either-way offence | Intermediate crimes such as theft, burglary and drugs offences. Can be heard in either court depending on seriousness. | Magistrates’ Court or Crown Court |
| Indictable-only offence | The most serious crimes such as murder, rape, robbery and manslaughter. Must be tried by a judge and jury. | Crown Court only |
What happens if you are arrested
You have the right to free legal advice at the police station. Ask for a duty solicitor. This is free and available 24 hours a day. You have the right to know why you are being detained. You have the right to have someone told you are at the police station. You do not have to answer questions beyond giving your name and address, unless asked in specific circumstances. Nothing you say can be used against you in court if you were not properly cautioned first.
Sentencing in criminal cases
If found guilty, the court imposes a sentence. Options include an absolute or conditional discharge, a fine, a community order (unpaid work, treatment programmes, curfew), a suspended sentence, or immediate custody (prison). Magistrates can impose up to 6 months in prison for a single summary offence and up to 12 months for either-way offences. The Crown Court has unlimited sentencing power for indictable offences. Sentencing guidelines published by the Sentencing Council set out starting points and ranges to ensure consistency.
Civil law: the basics
Civil law covers disputes between individuals, businesses and organisations. If someone injures you through their negligence, fails to pay a debt, breaks a contract, trespasses on your property or defames your character, civil law gives you a way to seek redress. The state does not bring civil cases. You bring them yourself, as the claimant.
The outcome of a civil case is not a criminal sentence. It is a remedy: usually an award of financial damages, or an order requiring someone to do or stop doing something (called an injunction). The goal is to restore you as far as possible to the position you were in before the wrong occurred.
| Type of civil case | Examples | What you might receive |
|---|---|---|
| Personal injury | Road accident, slip and fall, medical negligence, accident at work | Compensation for pain, lost earnings, medical costs and future losses |
| Contract dispute | Builder failed to complete work, employer did not pay wages, goods not delivered | Money owed under the contract, plus additional losses caused by the breach |
| Housing | Landlord failing to repair, unlawful eviction, housing disrepair | Compensation, injunction requiring repairs, or order preventing eviction |
| Defamation | False statement that damages your reputation, published online or in print | Damages and an order to remove or correct the false statement |
| Consumer rights | Faulty goods, mis-sold financial product, unfair contract term | Refund, replacement or compensation under the Consumer Rights Act 2015 |
| Family law | Divorce, child arrangements, financial settlement | Court orders on custody, maintenance, and division of assets |
Small claims: the most accessible civil route
If your civil claim is worth less than £10,000 (or £1,000 for personal injury), it goes through the small claims track in the County Court. The process is simpler, costs are limited and you can represent yourself without needing a solicitor. You can start a small claim online at gov.uk/make-court-claim-for-money. The court fee ranges from £35 to £455 depending on the value of the claim. If you win, the other side usually pays your court fee as well.
The court structure: which court does what
| Court | What it handles | Who decides |
|---|---|---|
| Magistrates’ Court | 95% of all criminal cases. Summary and either-way offences. Also some family and civil matters. Youth court for under-18s. | 3 lay magistrates or 1 district judge. No jury. |
| Crown Court | Serious criminal cases (murder, rape, robbery). Either-way cases sent up from Magistrates’. Appeals from Magistrates’. Sentencing. | Judge plus jury of 12 for trials. Judge alone for sentencing. |
| County Court | Most civil cases including personal injury, contract disputes, housing, small claims and family matters below High Court threshold. | District judge or circuit judge. No jury (except rare cases). |
| High Court | Complex civil cases, high-value claims, appeals from lower courts. Three divisions: King’s Bench, Chancery and Family. | High Court judge. |
| Court of Appeal | Appeals from Crown Court (Criminal Division) and High Court and County Court (Civil Division). | Panel of 3 judges. |
| UK Supreme Court | Final court of appeal for cases of national importance or complex legal points. Hears cases from England, Wales, Scotland and Northern Ireland. | Panel of 5 justices (12 in total). |
| Tribunals | Specialist bodies covering employment, immigration, tax, social security, education and more. Separate from the main court hierarchy. | Legally qualified judges, sometimes with specialist lay members. |
Scotland and Northern Ireland have separate legal systems with their own courts. The information in this guide applies to England and Wales. The UK Supreme Court sits at the top of all three systems for cases of significant national importance.
Key differences between criminal and civil law
| Feature | Criminal law | Civil law |
|---|---|---|
| Who brings the case | The state (Crown Prosecution Service) | The individual who was harmed (the claimant) |
| Purpose | Punish and deter. Protect society. | Compensate the person harmed. Restore their position. |
| Standard of proof | Beyond reasonable doubt | Balance of probabilities (more likely than not) |
| Outcome if successful | Conviction. Fine, community order or prison sentence. | Damages (money), injunction or other remedy. |
| Who pays legal costs | State funds prosecution. Defendant has right to legal aid. | Each party generally pays their own costs unless they win. |
| Can the same act lead to both? | Yes. The same event can result in both a criminal prosecution by the state and a civil claim by the victim. These are separate proceedings. An acquittal in a criminal case does not prevent a civil claim succeeding. | |
A real example: a road accident
Someone drives dangerously and injures you. The police investigate and the CPS may bring criminal charges for dangerous driving. That is the criminal process. Separately, you can bring a civil claim for personal injury compensation to cover your medical bills, lost earnings and pain and suffering. The criminal case is about punishing the driver. The civil case is about compensating you. Both can happen at the same time or in sequence. A guilty verdict in the criminal case makes the civil case easier but is not required for it to succeed.
Your legal rights
The following rights apply in England and Wales. Many are protected by the Human Rights Act 1998, which incorporates the European Convention on Human Rights into UK law.
| Right | What it means in practice |
|---|---|
| Right to a fair trial (Article 6) | You are entitled to a public hearing before an independent and impartial tribunal, within a reasonable time. You are presumed innocent until proved guilty. You have the right to defend yourself or to be legally represented. |
| Right to free legal advice on arrest | If you are arrested or detained, you have the right to consult a solicitor privately and free of charge before being questioned. You can ask for the duty solicitor at any time. |
| Right of appeal | If you are convicted of a criminal offence, you can appeal against your conviction and/or sentence to the Crown Court and beyond. In civil cases, you can appeal to a higher court if a judge made an error of law. |
| Right to remain silent | You do not have to answer police questions. However, if you fail to mention something in interview that you later rely on in court, the jury can draw adverse inferences from your silence in certain circumstances. |
| Right against double jeopardy | You cannot generally be tried twice for the same crime following an acquittal. Limited exceptions exist for serious offences where new compelling evidence emerges (Criminal Justice Act 2003). |
| Right to know the case against you | The prosecution must disclose the evidence it intends to rely on and any material that might assist your defence. Failure to do so can result in a conviction being overturned. |
Legal aid: what is available and what has been cut
Legal aid is government-funded legal help for people who cannot afford to pay for legal advice or representation. It was introduced in 1949 with the aim of giving every citizen access to justice regardless of their income. That vision has been significantly eroded since 2013.
What legal aid still covers
Criminal legal aid remains available for those facing prosecution who meet the means test. You are automatically entitled to free legal advice at the police station when arrested. For court proceedings, you can apply for a representation order if the case is in the interests of justice and you meet the financial eligibility criteria. Civil legal aid is still available for domestic abuse, housing where you are at risk of homelessness, asylum and immigration, and cases involving children and care proceedings. Mental health and some public law cases are also covered.
What was cut and what the impact has been
The Legal Aid, Sentencing and Punishment of Offenders Act 2012 (LASPO) came into force in April 2013. It removed legal aid from most private family law, housing disrepair, welfare benefits, employment and immigration matters. The year before LASPO, legal aid was granted in 925,000 cases. The year after, it fell to 497,000: a drop of 46%. Civil representation certificates fell from 146,000 in 2012/13 to 110,000 in 2024/25. Around 80% of private family law cases now involve at least one person representing themselves. The Law Society reports that by 2025, to qualify for full legal aid, a couple with two children must survive on just £41 a day, which is 57% below the minimum income standard.
The consequence of these cuts is a growing access to justice crisis. Legal aid deserts, where no provider is available locally, now affect 70% of people who need community care legal advice, 90% who need education law advice and 44% who need housing law advice, according to Law Society data from June 2025. Around 80% of private family law cases now involve at least one litigant in person. These individuals are navigating one of the most stressful experiences of their lives without a lawyer, in a system designed for people to be represented.
The strengths and limitations of the UK legal system
Strengths
The UK legal system is among the oldest and most respected in the world. The rule of law, judicial independence and the principle of innocent until proved guilty are foundational. Judges are appointed on merit and are constitutionally independent of the government. The adversarial system, in which each side presents its case and a neutral judge or jury decides, is designed to surface the truth through challenge. The common law tradition, in which judges develop the law through precedent, has produced sophisticated and adaptable legal principles. The Supreme Court sits as a check on executive and parliamentary power, and has the authority to declare legislation incompatible with human rights.
Limitations
Access to justice is unequal. The erosion of legal aid since 2013 means that the quality of justice you receive is increasingly determined by your ability to pay. Court backlogs are severe: the Ministry of Justice reported that the average Crown Court case takes over 700 days from charge to completion in 2025. The adversarial system, while robust, can be slow, expensive and traumatic, particularly for vulnerable individuals. The complexity of legal language and procedure continues to exclude people who lack education or legal literacy. Miscarriages of justice occur: the Criminal Cases Review Commission (CCRC) receives hundreds of applications each year from people who maintain they were wrongly convicted.
Practical steps: if you need legal help
| Situation | First step |
|---|---|
| You have been arrested or are being questioned by police | Ask for the duty solicitor immediately. This is free. Do not answer questions until you have spoken to a solicitor. |
| You have been a victim of a crime | Report to the police (999 for emergencies, 101 for non-emergencies). Ask about Victim Support (victimsupport.org.uk, 0808 168 9111). You do not need a solicitor to report a crime. |
| You want to bring a civil claim for under £10,000 | Start at gov.uk/make-court-claim-for-money. Citizens Advice can help you complete the paperwork. Small claims can be brought without a solicitor. |
| You are facing eviction or housing problems | Contact Shelter (shelter.org.uk, 0808 800 4444 free). They offer specialist housing legal advice and can help you access legal aid if available. |
| You have an employment dispute | Contact ACAS (acas.org.uk, 0300 123 1100) before going to an employment tribunal. They offer free early conciliation. |
| You need free legal advice generally | Citizens Advice (citizensadvice.org.uk, 0800 144 8848). Law centres (lawcentres.org.uk). Bar’s Free Representation Unit (thefru.org.uk). Community legal advice (communitylegaladvice.org.uk). |
| You think you have been wrongly convicted | Contact the Criminal Cases Review Commission (ccrc.gov.uk). They investigate potential miscarriages of justice and can refer cases back to the Court of Appeal. |
Free support organisations
| Organisation | What they offer | Contact |
|---|---|---|
| Citizens Advice | Free advice on legal rights, housing, employment, consumer and benefits issues. Local offices and national phone line. | 0800 144 8848. citizensadvice.org.uk |
| Shelter | Free specialist housing law advice. Legal aid housing cases. Emergency housing helpline. | 0808 800 4444. shelter.org.uk |
| Victim Support | Free emotional support and practical help for victims of crime. Independent of police. | 0808 168 9111. victimsupport.org.uk |
| Law Centres Network | Free legal advice and representation in welfare, housing, employment and immigration law. Particularly for people on low incomes. | lawcentres.org.uk |
| Bar’s Free Representation Unit | Free legal representation in Employment Tribunals and some civil courts for those who cannot afford a barrister and do not qualify for legal aid. | thefru.org.uk |
| ACAS | Free early conciliation in employment disputes before an employment tribunal is issued. Statutory conciliation service. | 0300 123 1100. acas.org.uk |
| Criminal Cases Review Commission | Independent body that investigates potential miscarriages of justice and can refer cases back to the Court of Appeal. | ccrc.gov.uk |
Sources used in this guide
HM Courts and Tribunals Service, judiciary.uk. Primary source for court structure in England and Wales. Structure of the Courts and Tribunals System, current as of 2026.
GOV.UK, Criminal courts: Magistrates’ Courts. Primary source for offence categories, sentencing limits and court procedure. gov.uk/courts.
Crown Prosecution Service, cps.gov.uk. Primary source for the two-test threshold for prosecution and the role of the CPS.
Parliamentary Office of Science and Technology, POSTnote 758, January 2026. Access to justice: Legal aid and services. Primary source for legal aid statistics, litigants in person data and legal aid deserts.
Ministry of Justice, Legal Aid Statistics England and Wales, January to March 2025. GOV.UK, November 2025. Source for legal aid expenditure figures and civil representation certificate data.
Law Society of England and Wales, written evidence to Parliament, 2025. Source for legal aid desert statistics by category: 70% without community care provider, 90% without education provider, 44% without housing provider.
Amnesty International UK, legal aid cuts report. Source for the 925,000 to 497,000 case drop following LASPO implementation: a fall of 46%.
UCL Centre for Access to Justice, parliamentary written evidence, September 2025. Source for litigants in person data and the 80% private family law figure.
Bar Council, Access to justice can’t survive further budget cuts, 2024. Source for quotes and analysis on the impact of legal aid cuts on access to justice.
Human Rights Act 1998. Primary legislation. Source for Articles 6 and other Convention rights incorporated into UK law.
Legal Aid, Sentencing and Punishment of Offenders Act 2012 (LASPO). Primary legislation. Source for the legal framework of current legal aid eligibility.
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