Corporate and Business Law (Global) · Business, political and legal systems

Classification of Law: Civil, Criminal, Public and Private

Updated 11 October 2026 · Fact-checked

Law is classified by purpose and parties. Criminal law punishes wrongs against society, and the state prosecutes to the standard of beyond reasonable doubt. Civil law settles disputes between private parties, with the balance of probabilities. Public law governs the state and its citizens; private law governs dealings between private parties.

Understand Classification of Law: Civil, Criminal, Public, Private

Law is not one block. Lawyers sort it into categories because each category has its own aims, parties, courts, standards of proof and outcomes. In LW, you are often asked to place a scenario into the right category and state the consequence.

Criminal law deals with conduct that the state treats as a wrong against society as a whole. The case is brought by the state, usually through a prosecutor. The person accused is the defendant. The aim is to punish and deter, for example by a fine or imprisonment. The prosecution must prove guilt beyond reasonable doubt. This is a high standard, because the consequences for the defendant are serious.

Civil law deals with disputes between private parties, such as individuals and companies. Examples are breach of contract and the tort of negligence. The person who brings the case is the claimant (the term can vary by country, for example plaintiff). The aim is usually to compensate the claimant, or to order the defendant to do or stop doing something. The claimant must prove the case on the balance of probabilities, meaning it is more likely than not.

A second split is public law and private law. Public law covers the relationship between the state and individuals, and the organisation of the state itself. Constitutional law, administrative law and criminal law are the usual examples. Private law covers relations between private persons. Contract, tort, property, company law and family law are the usual examples. Note that criminal law is part of public law, while civil law is largely the same ground as private law.

A third split is substantive and procedural law. Substantive law creates and defines rights and duties, for example what amounts to theft or a breach of contract. Procedural law sets out how cases are brought, heard and enforced, for example rules on evidence, time limits and appeals. One act can be both civil and criminal. A dishonest employee who steals from a company may face prosecution and also a civil claim to recover the money. The two cases are separate and have different standards of proof.

Key formulas to remember

Criminal standard of proof: Criminal case: prosecution proves guilt beyond reasonable doubt; Higher standard. If real doubt remains, the defendant is not guilty.
Civil standard of proof: Civil case: claimant proves on the balance of probabilities; Lower standard: more likely than not. Burden normally rests on the claimant.
Parties: Criminal: state (prosecution) v defendant | Civil: claimant v defendant; Terms vary by jurisdiction, but the idea is the same.
Outcome: Criminal: punishment (fine, imprisonment) | Civil: remedy (damages, injunction, specific performance); Civil remedies mainly compensate or restore, not punish.
Public v private: Public law = state and individual | Private law = individual and individual; Criminal law is public law. Contract and tort are private law.
Substantive v procedural: Substantive = what the rights and duties are | Procedural = how they are enforced; Ask: does the rule define a right, or regulate the process?

How to solve Classification of Law: Civil, Criminal, Public, Private questions

Use this method for any question that asks you to classify a law, a case or a scenario.

1Identify who brings the action. If the state prosecutes, think criminal. If a private party sues, think civil.
2Identify the aim. Punishment and deterrence point to criminal. Compensation or a court order between parties points to civil.
3Check the standard of proof in the question. Beyond reasonable doubt is criminal. Balance of probabilities is civil.
4Decide public or private. Does the rule govern the state's relationship with individuals, or dealings between private parties?
5Decide substantive or procedural. Does it define a right or duty, or set how a case is conducted?
6Check whether one set of facts could give rise to both criminal and civil action. If so, say so.
7Pick the option that fits every part of the question, not just one clue.

Quickest way: Three-clue shortcut

When to use it: Use this in Section A or Section B objective questions where time is short.

Clue 1 is the party: state prosecutes means criminal; private claimant means civil.
Clue 2 is the proof: beyond reasonable doubt means criminal; balance of probabilities means civil.
Clue 3 is the result: punishment means criminal; damages or an order means civil.
If two clues agree, choose that category. Then eliminate options that mix the features, such as a civil case needing proof beyond reasonable doubt.

Common mistakes in Classification of Law: Civil, Criminal, Public, Private

Saying a civil case must be proved beyond reasonable doubt.
Students mix up the two standards because both sound like legal certainty.
Fix: Link the higher standard to the higher stakes: liberty is at risk only in criminal cases.
Treating civil law and public law as opposites.
The words sound like a single pair.
Fix: Remember there are two separate splits. Civil v criminal is one. Public v private is another. Criminal law is part of public law.
Thinking one event can only be civil or criminal.
Students expect each fact pattern to fit one box.
Fix: One act, such as fraud or a assault, can lead to a prosecution and a separate civil claim. Treat them as different cases.
Confusing substantive and procedural law.
Both appear in statutes and both are called 'rules'.
Fix: Ask whether the rule creates a right or duty (substantive) or governs how it is enforced, for example time limits or evidence (procedural).
Calling the party in a criminal case the claimant.
Students use one word for anyone who starts a case.
Fix: In a criminal case the state prosecutes and the accused is the defendant. The claimant is a civil term.
Saying civil remedies are meant to punish.
Students assume any court order is a penalty.
Fix: Civil remedies mainly compensate or restore the claimant's position. Punishment is the aim of criminal law.

Worked examples

Example 1

A company director is accused by the state of fraudulent trading. Separately, a supplier sues the company to recover an unpaid invoice. Classify each action and state the standard of proof.

Show the solution

The state brings the fraud case. It is a wrong against society, so it is criminal law and part of public law.
The prosecution must prove guilt beyond reasonable doubt. The possible outcome is punishment, such as a fine or imprisonment.
The supplier is a private party suing another private party over a contract debt. This is civil law and private law.
The supplier is the claimant and must prove the case on the balance of probabilities. The remedy is payment of the debt, that is damages or an order to pay.

Answer: The fraud case is criminal (public law), proved beyond reasonable doubt. The invoice claim is civil (private law), proved on the balance of probabilities.

Example 2

Which of the following is an example of procedural law? A) A rule defining when a contract is breached. B) A rule setting the time limit for starting a claim. C) A rule defining the offence of theft. D) A rule stating that a company is a separate legal person.

Show the solution

Procedural law governs how rights are enforced in the courts, not what the rights are.
Option A defines a breach, which is a substantive duty.
Option C defines an offence, which is substantive.
Option D states a legal status and rights, which is substantive.
Option B sets a time limit for bringing a claim. That regulates the process of enforcing a right, so it is procedural.

Answer: B. A time limit for starting a claim is procedural law.

Exam tips

Read the question for the standard of proof first. It often gives the answer in a few words.
In objective questions, wrong options often swap the standards or the parties. Check each part of an option before choosing.
Remember that criminal law is part of public law. Questions sometimes test this link.
If a scenario mentions both a prosecution and a claim for compensation, expect the answer to say both can proceed separately.
Learn one clear example for each category: criminal (theft or fraud), civil (breach of contract), public (constitutional or administrative law), procedural (evidence or time limits).

Practice questions from Business, political and legal systems

Classification of Law: Civil, Criminal, Public, Private in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Classification of Law: Civil, Criminal, Public, Private: frequently asked questions

What is the main difference between civil law and criminal law?

Civil law settles disputes between private parties and usually leads to compensation or a court order. Criminal law deals with wrongs against society, is prosecuted by the state and leads to punishment. The standards of proof also differ.

What is the standard of proof in civil and criminal cases?

In criminal cases the prosecution must prove guilt beyond reasonable doubt. In civil cases the claimant must prove the case on the balance of probabilities, which means it is more likely than not.

Can the same act be both a crime and a civil wrong?

Yes. For example, fraud or assault can lead to a prosecution by the state and a separate civil claim for compensation. The two cases are heard separately and use different standards of proof.

What are examples of public law and private law?

Public law includes constitutional law, administrative law and criminal law. Private law includes contract, tort, property and company law.

What is the difference between substantive and procedural law?

Substantive law defines rights, duties and offences. Procedural law sets the rules for how cases are brought, proved and enforced, such as rules on evidence and time limits.