Nature and Definition of Crime: Jurists' Views and Essential Elements

What is a crime, in its most exact sense, has troubled jurists for more than two centuries. Blackstone answered the question one way, Austin another, Kenny a third, and modern sociologists a fourth. Each answer captures part of the truth, and none by itself is complete. The reason is that a crime is not a simple fact of the world. It is a legal, moral, and social category, and every attempt to define it has to negotiate all three dimensions at once. This module walks through the definitions offered by leading jurists, sets out the essential elements of a crime, and marks off crime from tort and from moral wrong.

1. The Idea of Crime

Etymology and ordinary usage

The English word crime is derived from the Latin crimen, which meant accusation or charge. In classical Latin the word carried a forensic sense: an offence for which one could be brought before a tribunal. Over centuries the meaning shifted. From accusation it came to denote the act that would attract accusation, and finally the harmful conduct itself. In modern English usage, a crime is a wrong for which the state, and not the private victim alone, prosecutes and for which the state imposes punishment.

Why a universal definition is elusive

A crime is defined by three things at once: a legal rule that forbids conduct, a moral judgment that condemns it, and a social process that identifies it and pursues its author. Any definition that captures only one of these dimensions is incomplete. A purely legal definition (crime is what the statute punishes) is circular and cannot tell us why some acts and not others are made criminal. A purely moral definition (crime is conduct that shocks the conscience) fails to explain why some morally troubling acts are not crimes and some morally neutral acts are. A purely sociological definition (crime is what society brands as crime) risks collapsing crime into whatever a particular society happens to fear.

2. Definitions by Leading Jurists

Each of the following definitions has entered the standard textbook literature. Learn the definer, the definition in a compact form, and one line of critique.

Sir William Blackstone

Blackstone's definition is a legal positivist one. Crime is defined by reference to public law. The definition is criticised for being circular: it tells us that a crime is what the law calls a crime, without explaining why the law calls it so. In a later passage Blackstone widened the definition to cover acts that were a breach or violation of public rights and duties due to the whole community, considered as a community. This wider formulation captures the public character of crime, but remains formal.

John Austin

Austin's definition is procedural. What makes a wrong a crime, in his view, is who prosecutes. If the victim can withdraw the case, it is a tort. If only the state can, it is a crime. The definition is clean but modern criminal procedure complicates it, as some offences are compoundable at the option of the victim, and some torts (public nuisance, for example) are prosecuted by the state.

Courtney Stanhope Kenny

Kenny's definition refines Austin's. He focuses on the punitive character of the sanction and on the fact that only the sovereign can pardon. The definition works well for the graver offences. Its weakness is that some compoundable offences in India can be withdrawn by the private complainant, which sits uneasily with Kenny's phrasing.

Halsbury's Laws of England

Halsbury combines act, omission, and the public character of the wrong. It is a serviceable working definition and is widely quoted in Indian textbooks.

Sir James Fitzjames Stephen

Stephen adds a moral element to Blackstone's legal one. Crime, on his view, is not merely what the law forbids, but conduct that also shocks moral sentiment. The definition is romantic and does not fit modern regulatory offences (traffic violations, tax defaults), which are not revolting to moral sentiment but are certainly crimes.

Sir William Oldnall Russell

Russell defines crime instrumentally, by reference to state penal policy. The definition is realistic and captures the growth of regulatory offences, but it is again close to circular: crime is what the state chooses to prevent by penal means.

Sir John Salmond

Salmond gives full weight to the public character of crime. The victim of a murder is the deceased and his family, but the wrong is done to society, and it is society that prosecutes. The definition is the closest of the classical ones to the modern Indian understanding.

Terence Morris and the modern sociological view

Morris and other twentieth century sociologists step back from the search for a moral or metaphysical essence of crime. Crime, on their view, is what the community, through its legal institutions, decides to treat as crime. The definition is descriptively accurate but morally thin. It gives no guide to what the community ought to criminalise.

3. Essential Elements of a Crime

Kenny reduced the elements of a crime to two: the physical element (actus reus) and the mental element (mens rea). Salmond widened them to four. The classical Indian textbook position, which examiners prefer, is Salmond's.

Element 1: A human being

The subject of criminal responsibility is a human being. In earlier times, criminal proceedings were sometimes taken against animals and even against inanimate objects. Modern criminal law abandons this idea. Only human beings, and by statutory extension juristic persons such as companies, can be criminally liable. Certain categories of human beings, such as children below the age of criminal responsibility (Section 20 BNS, formerly Section 82 IPC, sets it at seven, and Section 21 BNS at twelve for those with immature understanding), or persons of unsound mind (Section 22 BNS, formerly Section 84 IPC), are excluded from full criminal liability.

Element 2: Mens rea, the guilty mind

The mental element accompanies the act. It may take the form of intention, knowledge, recklessness or negligence, depending on the offence. The BNS, like the IPC before it, does not use the words mens rea. Instead, it uses concrete adverbs such as intentionally, knowingly, voluntarily, dishonestly, fraudulently, negligently and rashly. The maxim actus non facit reum, nisi mens sit rea captures the requirement. A separate module in this series is devoted to it.

Element 3: Actus reus, the guilty act

Actus reus is the physical element. It is the conduct, omission or state of affairs that the law forbids. Kenny called it the physical result of human conduct which the law seeks to prevent. It must be voluntary. Involuntary movements such as a spasm or a reflex are not acts in the criminal sense. Where the offence is a result crime (murder, cheating), the required result must also occur. Where the offence involves attendant circumstances (rape requires absence of consent), those must also be present.

Element 4: Injury

The act must cause injury, either to a specific individual, to a class of persons, or to society at large. The BNS, in Section 2(14), retains a wide definition of injury adopted from Section 44 IPC: any harm whatever illegally caused to any person, in body, mind, reputation or property. Some inchoate offences (attempt, criminal conspiracy) are punishable even where the injury has not yet materialised, but only because the law regards the threat of future injury as itself a form of social harm.

4. Crime Distinguished from Tort

Both crime and tort are legal wrongs. The lines between them are practical rather than metaphysical. The following comparison lays them out.

5. Crime Distinguished from Moral Wrong

Overlap and divergence

A moral wrong is conduct that is condemned by the ethical sensibility of the community. A crime is conduct that is punished by the criminal law. The two categories overlap substantially but do not coincide.

• Most crimes are also moral wrongs. Murder, rape, theft, cheating and forgery are all condemned by the conscience of the community as well as by the code.
• Not all moral wrongs are crimes. Ingratitude, cruelty in speech, breach of hospitality, and adultery (after Joseph Shine v. Union of India, 2018) are moral wrongs that the criminal law does not reach.
• Not all crimes are moral wrongs. Regulatory offences such as failure to file a return by a deadline, or driving without a licence, are crimes but not moral wrongs in the usual sense. They belong to the category of mala prohibita.

The role of the state

The bright line between moral wrong and crime is the involvement of the state. A moral wrong is answered by conscience, by community censure and by private sanction. A crime is answered by the criminal justice system, with its distinctive procedures and penalties. The transition from moral wrong to crime is a political and legislative act. It is by choosing to criminalise (and sometimes to decriminalise) that a society sets the boundary.

6. Classification of Crimes

Public wrongs and private wrongs

Public wrongs offend the community at large: treason, sedition (now under Section 152 BNS), unlawful assembly, public nuisance. Private wrongs offend a specific individual, though the state still prosecutes them: murder, hurt, theft, cheating.

Real crimes and quasi crimes

Real crimes are those universally regarded as wrong: crimes against the person, against property, against the state. Quasi crimes are regulatory offences created for the ordering of society: traffic violations, licensing failures, tax defaults. This corresponds broadly to the mala in se and mala prohibita distinction.

Mala in se and mala prohibita

A separate module in this series is devoted to this classification. In summary, mala in se are wrongs by their nature (murder, rape, theft), whereas mala prohibita are wrongs because prohibited (regulatory offences, tax offences, licensing violations).

Cognizable and non cognizable

Under Section 173 of the Bharatiya Nagarik Suraksha Sanhita, 2023 (BNSS), read with its First Schedule, cognizable offences are those in which a police officer may arrest without a warrant and may investigate without the order of a magistrate. Non cognizable offences require both a warrant of arrest and a magistrate's order for investigation. The distinction is procedural but has substantive consequences for the investigative process.

Bailable and non bailable

Bailable offences are those in which the accused has a right to be released on bail. Non bailable offences are those in which bail is not a matter of right but of judicial discretion. The First Schedule to the BNSS classifies each offence in the Sanhita accordingly.

Compoundable and non compoundable

Compoundable offences may be settled between the accused and the victim, with or without the permission of the court, under Section 359 BNSS. Non compoundable offences may not be so settled. The distinction reflects the state's view of the seriousness of the offence and of the extent to which the victim's forgiveness should end the matter.

7. Nature of Crime: Contemporary Perspectives

Beyond the classical definitions, three modern perspectives illuminate the nature of crime.

The legal-positivist view

Legal positivists (Bentham, Austin, Hart) define crime by reference to positive law. A crime is any act that the sovereign law-maker has forbidden and made punishable. The strength of the view is precision. The weakness is that it does not tell us which acts ought to be criminalised. It leaves the moral question open.

The sociological view

Sociologists (Sutherland, Sellin, Merton) treat crime as a social phenomenon. Sutherland's definition, developed in the 1940s, focused on white collar crime and drew attention to conduct by the powerful that had been under criminalised. Sellin's culture conflict theory and Merton's strain theory sought to explain why certain groups and individuals turn to crime. The perspective enriches the understanding of crime without displacing the legal definition.

The Marxist and critical view

Marxist and critical scholars (Bonger, Quinney, Chambliss) argue that the criminal law reflects the interests of the dominant social and economic classes. The category of crime, on this view, is politically constructed and used to protect existing distributions of power and property. The perspective illuminates the biases in law making and enforcement, but is criticised for reducing all crime to class conflict.

8. Consolidated Landmark Judgments

A selection of authorities that recur in questions on the nature and definition of crime. Learn the name, the citation, the one line ratio and the anchor.

• R. v. Higgins, (1801) 2 East 5. Even attempts to commit a crime are punishable, because the criminal law reaches conduct that threatens social harm.
• R. v. Dudley and Stephens, (1884) 14 QBD 273. Necessity is no defence to murder. The moral seriousness of the wrong survives even in extremity.
• Woolmington v. DPP, [1935] AC 462. The prosecution bears the burden of proof throughout. The presumption of innocence is a defining feature of the criminal process.
• Ranjit D. Udeshi v. State of Maharashtra, AIR 1965 SC 881. Mens rea is presumed as a component of every criminal offence, unless the statute clearly or by necessary implication displaces it.
• State of Maharashtra v. Mayer Hans George, AIR 1965 SC 722. Public welfare regulations may dispense with mens rea. The state's regulatory needs can shape the definition of crime.
• Nathulal v. State of Madhya Pradesh, AIR 1966 SC 43. Even a regulatory statute is presumed to require mens rea unless the object and language of the statute clearly point otherwise.
• Joseph Shine v. Union of India, (2018) 2 SCC 189. Adultery decriminalised. Illustrates how legislative and judicial choices, not any fixed moral essence, define the boundary of the criminal law.
• Navtej Singh Johar v. Union of India, (2018) 10 SCC 1. Consensual same sex conduct decriminalised. The category of crime is historically contingent and evolves with the constitutional order.
• Standard Chartered Bank v. Directorate of Enforcement, (2005) 4 SCC 530. A company can be prosecuted for offences even where the punishment is imprisonment. The extension of criminal liability to juristic persons.

Frequently Asked Questions

What is the definition of crime?

A crime is an act or omission, forbidden by law, punishable by the state through a prescribed procedure, and prosecuted in the name of the public rather than the individual victim. It has a legal element, a moral element and a public element.

What are the four elements of a crime?

The four elements are: (i) a human being under a legal obligation, (ii) mens rea (a guilty mind), (iii) actus reus (a guilty act or omission), and (iv) injury to another or to society. All four must be present for criminal liability to attach.

What is the difference between crime and tort?

A crime is a public wrong prosecuted by the state; a tort is a private wrong for which the injured party sues. Punishment (imprisonment or fine) follows a crime; compensation (damages) follows a tort. Standards of proof are also different: beyond reasonable doubt for crime, preponderance of probabilities for tort.

How did Blackstone define crime?

Blackstone, in the Commentaries on the Laws of England (1769), defined a crime as an act committed or omitted in violation of a public law either forbidding or commanding it. The definition is criticised as circular because it defines crime by reference to the law that forbids it.

Are all moral wrongs crimes?

No. Ingratitude, breach of hospitality, and adultery (after Joseph Shine, 2018) are moral wrongs not treated as crimes. Conversely, regulatory offences such as traffic violations are crimes but not moral wrongs. The overlap is substantial but not exact.

What is Salmond's definition of crime?

Sir John Salmond defined a crime as an act deemed by law to be harmful for society as a whole, although its immediate victim is an individual. The definition captures the distinctively public character of criminal wrongs.

Related Topics on The Legal Bridge

For a fuller picture, read these companion notes on adjacent doctrines and provisions:

• Mens Rea in Criminal Law: the mental element required for a crime.
• Actus Non Facit Reum Nisi Mens Sit Rea: the foundational maxim that ties the four elements together.
• Mala in Se and Mala Prohibita: the classification of crimes into two families.
• Punishments under the BNS: the state's response to a crime once proved.