Business Laws and Management · Introduction to Law

Classification of Law: Public, Private, Civil, Criminal and Procedural

Updated 11 October 2026 · Fact-checked

Classification of law means grouping laws by their nature. Public law governs the State and its relation to citizens. Private law governs relations between individuals. Civil law settles private wrongs and rights. Criminal law punishes offences against society. Substantive law creates rights and duties. Procedural law lays down how to enforce them.

Understand Classification of Law

Law is a large body of rules. To study it, we sort it into groups. Each group answers one question: who is involved, what is the wrong, or what does the rule do.

Public law and private law. Public law deals with the State and its relation to individuals. Constitutional law, administrative law and criminal law are the usual examples. Private law deals with relations between individuals, such as contract law, property law, family law and the law of torts. In public law the State is a party with authority. In private law the parties stand on equal footing.

Civil law and criminal law. Civil law protects the private rights of a person. A person who is wronged sues for relief, such as compensation or an order to perform. A breach of contract is a civil matter. Criminal law deals with acts the State treats as offences against society, such as theft. The State prosecutes, and the punishment is a fine, imprisonment or both. The aim of civil law is to compensate. The aim of criminal law is to punish and deter.

Substantive law and procedural law. Substantive law defines rights, duties and offences. The Indian Contract Act, 1872 is an example, because it says what makes a contract valid. Procedural law, also called adjective law, sets the steps to enforce those rights: how to file a case, how evidence is led, and how courts hear it. Civil and criminal procedure codes are examples.

A single act can fall in more than one group. For example, a cheque dishonour has both a civil side (recovering the money) and a criminal side (the penalty). Do not treat the groups as sealed boxes. They are different lenses on the same body of law.

Key formulas to remember

Public law: Public law = rules on State vs individual (constitutional, administrative, criminal); The State is a party or the authority. Criminal law is usually placed under public law.
Private law: Private law = rules on individual vs individual (contract, property, family, torts); Also called civil law in the wide sense, so read the question carefully.
Civil vs criminal: Civil = private right, compensation or relief | Criminal = offence against society, punishment; In criminal cases the State prosecutes. In civil cases the injured person sues.
Substantive vs procedural: Substantive = defines rights, duties, offences | Procedural = how to enforce them; Procedural law is also called adjective law.

How to solve Classification of Law questions

Use this method for any question that asks you to name, match or distinguish a type of law.

1Read the question and find the key word: State, individual, punishment, compensation, right, or procedure.
2Decide which pair the question tests: public/private, civil/criminal, or substantive/procedural.
3Ask who the parties are. State against person points to public or criminal law. Person against person points to private or civil law.
4Ask what the law does. If it creates or defines a right, duty or offence, it is substantive. If it gives steps for court work, it is procedural.
5Ask what the remedy is. Compensation or relief means civil. Fine or imprisonment means criminal.
6Match the example to a known one: Constitution (public), contract law (private), Code of Criminal Procedure (procedural).
7For a written answer, define both terms, give one example each, and state the main difference.

Quickest way: Three-question shortcut

When to use it: Use this in the OMR paper when you have under a minute per MCQ.

Who is the wronged party: the State or a person? State means public or criminal.
What is the outcome: punishment or compensation?
Is the rule about what the right is, or how to claim it? What means substantive. How means procedural.
Eliminate options that mix categories, then pick the one that fits all three checks.

Common mistakes in Classification of Law

Treating criminal law as private law.
Students see an individual victim and assume the matter is private.
Fix: Remember the State prosecutes crimes. So criminal law is usually grouped under public law.
Calling the Contract Act procedural law.
Students link it with court cases and enforcement.
Fix: The Act defines rights and duties, so it is substantive. Procedure only says how to enforce them.
Saying civil law aims to punish.
Both civil and criminal cases go to courts, so the aims blur.
Fix: Civil law aims at relief or compensation. Punishment belongs to criminal law.
Assuming one act can only be civil or criminal.
Textbooks show clean examples, so students think the split is rigid.
Fix: Some acts give rise to both kinds of liability. Read what the question asks: the remedy or the offence.
Mixing up 'adjective law' with something new.
The term sounds unfamiliar.
Fix: Adjective law is another name for procedural law.

Worked examples

Example 1

MCQ: Which of the following is an example of substantive law? (a) Law on how to file a suit in a court (b) Law that defines the essentials of a valid contract (c) Law on how evidence is recorded (d) Law on the steps of an appeal

Show the solution

The question asks for substantive law, which defines rights, duties and offences.
Options (a), (c) and (d) all describe steps of court work. These are procedural.
Option (b) defines what makes a contract valid. This creates rights and duties.

Answer: (b) Law that defines the essentials of a valid contract.

Example 2

Write a short answer: Distinguish between civil law and criminal law.

Show the solution

Define civil law: it protects private rights, and the injured person sues for relief or compensation. Example: breach of contract.
Define criminal law: it deals with offences against society, and the State prosecutes. Example: theft.
Compare the parties: in civil cases the injured person is the plaintiff. In criminal cases the State acts as prosecutor.
Compare the aim: civil law compensates. Criminal law punishes and deters.
Compare the outcome: civil gives damages or an order to perform. Criminal gives fine, imprisonment or both.
Add that one act may lead to both kinds of liability.

Answer: Civil law settles private disputes and gives relief or compensation to the injured person. Criminal law deals with offences against society, is prosecuted by the State, and results in punishment such as fine or imprisonment.

Exam tips

In Paper 4 the questions are one-mark MCQs, so learn the one-line definition of each type and one example.
Expect match-the-following and example-based questions, such as which category a given Act belongs to.
Watch for words like 'adjective law' and 'State' in the options, which signal procedural and public law.
There is no negative marking in the OMR paper, so attempt every question after eliminating wrong options.
Use the 15 minutes of reading time to mark the law questions you can answer quickly.

Practice questions from Introduction to Law

Classification of Law 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: frequently asked questions

What is the difference between public law and private law?

Public law governs the relation between the State and individuals, such as constitutional and administrative law. Private law governs relations between individuals, such as contract and property law.

What is the difference between substantive and procedural law?

Substantive law defines rights, duties and offences. Procedural law lays down the method of enforcing them in courts. The first says what, the second says how.

Is criminal law public or private law?

Criminal law is usually treated as part of public law, because the State prosecutes the offender for a wrong against society. Check how your study material places it before answering.

Can one act be both a civil and a criminal wrong?

Yes. Some acts create liability under both. The civil side gives the injured person a remedy such as compensation. The criminal side leads to punishment by the State.