How Far is Motive Necessary for Determining a Crime?

Motive and Criminal Liability — How Far Does It Matter?

Among the most enduring misconceptions in the popular understanding of criminal law is the belief that a person cannot be convicted of a crime unless a motive for committing it is proved. Equally persistent is the opposite error — that a person acting from a pure or noble motive is somehow insulated from criminal liability. Both assumptions are wrong, and the law has consistently corrected them. The truth is more nuanced, more intellectually satisfying, and ultimately more just: motive is relevant to the investigation of crime and to the appreciation of evidence, but it is never a necessary ingredient of any offence under the Indian Penal Code or the Bharatiya Nyaya Sanhita. To understand why, one must first understand what motive actually is, and how it differs from the concept of intention, with which it is so frequently and so fatally confused.

Motive Distinguished from Intention

The distinction between motive and intention is one of the most important, and one of the most neglected, distinctions in criminal jurisprudence. The two concepts operate at entirely different levels of the mental process, and the law treats them with fundamentally different degrees of concern.

Intention is the immediate, direct purpose of the act — the conscious aim that drives the physical conduct at the moment it is performed. It is the will directing the deed. When A raises a loaded pistol, aims it at B, and fires, the intention is unmistakable: to kill or to cause grievous hurt. This immediate purpose is what the law fastens upon when it asks whether A is guilty of murder or attempt to murder.

Motive, on the other hand, is the ulterior reason behind the intention — the emotion, desire, or background consideration that prompted the will to act in the first place. It is, as Austin described it, the spring of action. In the example above, why did A want to kill B? Was it revenge? Jealousy? Greed? A desire to inherit B's property? That why is the motive — and while it may be morally significant, it is legally irrelevant to the question of whether the offence was committed.

The Supreme Court in Basdev v. State of Pepsu (AIR 1956 SC 488) captured this distinction with precision: motive is something which prompts a man to form an intention. The intention, once formed and acted upon, stands entirely on its own legal footing. The motive that gave rise to it remains, at best, circumstantial background.

A pair of illustrations from ordinary life brings this into sharp relief. A doctor who amputates a patient's leg saves the limb but alters his body permanently. His motive is the patient's welfare; his intention is to perform the operation. The law does not punish him. A thief who steals bread to feed his starving children acts from a sympathetic motive — desperate need — but his intention is to dishonestly take property belonging to another. His motive earns him no exemption from the law of theft under Section 378 IPC (Section 303, BNS). As KD Gaur put it: a good motive will not render lawful what is in fact a crime, and a bad motive will not make unlawful that which is otherwise lawful.

The Legal Position — Motive Not Essential to Conviction

The settled legal position in India, affirmed by the Supreme Court in a long and consistent line of decisions, is that proof of motive is never a necessary requirement for conviction. The prosecution is not bound to establish why the accused committed the offence. It is bound to establish, beyond reasonable doubt, the ingredients of the offence — the actus reus and the required mens rea — but not the background reason that drove the accused toward that act.

Section 8 of the Indian Evidence Act, 1872 (now Section 8 of the Bharatiya Sakshya Adhiniyam, 2023) recognises motive as a relevant fact — it says that any fact is relevant which shows or constitutes the motive or preparation for any fact in issue. This provision acknowledges that motive has evidentiary value: it helps explain conduct, corroborates testimony, and may be one circumstance in a chain of circumstantial evidence that points toward guilt. But relevance under the law of evidence is a far cry from necessity as an ingredient of the offence.

The Supreme Court made this absolutely clear in Om Prakash v. State of Uttaranchal (2003 1 SCC 648), a case of horrifying cruelty in which a domestic servant murdered three members of a household. The defence argued absence of proved motive as a ground for doubt. The Court dismissed this argument entirely, holding that failure to prove motive is irrelevant in a case where the guilt of the accused is proved beyond reasonable doubt by direct evidence. The manner of killing was so ghastly and cruel that it shocked the conscience of the court, and the absence of an identified motive did not dilute the guilt one fraction.

In Yunis v. State of Madhya Pradesh (2003 1 SCC 425), the Supreme Court again held that where oral evidence against the accused is cogent and reliable, the question of motive simply falls away. And in Shamsher Singh v. State of Haryana, where eyewitness accounts and medical evidence clearly established guilt, the absence of a proved motive was held to be of no significance whatsoever.

When Absence of Motive May Assist the Defence

The law does not, however, treat motive as entirely irrelevant in all situations. Honesty requires acknowledgment that in cases resting entirely on circumstantial evidence — where there is no direct eyewitness account, no confession, and no forensic certainty — the absence of any discernible motive may be a circumstance that tilts the balance in favour of the accused.

This is because circumstantial evidence requires the court to draw inferences from a chain of facts, and that chain is strengthened when a reason for the crime can be identified. In Yunis v. State of Madhya Pradesh, the Supreme Court itself observed that where the essential ingredients of the offence are not otherwise established, absence of proof of motive may be a ground that assists the accused. The court is entitled to ask: why would this person, who had no grievance, no grudge, no gain, commit this act? The absence of an answer does not automatically lead to acquittal, but it is a thread in the fabric of reasonable doubt.

Similarly, the presence of a proved motive can be a powerful corroborating circumstance in favour of the prosecution. A person known to have harboured deep resentment against the deceased, to have made threats before the incident, and to have had recent quarrels with the victim presents a case where motive corroborates the prosecution's theory. In Madan Gopal Kakkad v. Naval Dubey (1992), the Supreme Court noted that while motive by itself is not determinative, it does render the prosecution case more cohesive and intelligible when established.

Motive and Specific Provisions of the IPC and BNS

A survey of specific provisions reinforces how consistently the Code maintains this position.

Murder — Section 300 IPC (Section 101, BNS): The four clauses of Section 300 define murder entirely by reference to the accused's intention or knowledge at the moment of the act. Whether the act was motivated by hatred, greed, passion, or even a misguided belief that the deceased deserved to die has no bearing on guilt. The fact of intentional killing with the required degree of mens rea is sufficient for conviction. In the celebrated case of K.M. Nanavati v. State of Maharashtra (AIR 1962 SC 605), Commander Nanavati shot and killed Ahuja, the man with whom his wife had been having an affair. His motive — a combination of betrayed honour and protective love for his wife — attracted enormous public sympathy. The Supreme Court was nonetheless unmoved by the motive and confirmed the conviction for murder, because the intention to cause death was established beyond question. The law does not accept a sympathetic motive as a defence to intentional killing.

Theft — Section 378 IPC (Section 303, BNS): The definition of theft requires the dishonest intention to take movable property out of another's possession without consent. The motive — whether the accused stole out of necessity, greed, or even to support a charitable purpose — is entirely irrelevant. What matters is the dishonest intention at the moment of taking. Illustration (a) to Section 378 provides: "A sees a ring on Z's finger. A knows it belongs to Z. A pulls it off Z's finger without consent, intending to return it later. A has committed theft, because at the moment of taking he did not have Z's consent and acted dishonestly." The eventual plan to return it is a motive consideration; the dishonest intention at the moment of taking is the legal reality.

Criminal breach of trust — Section 405 IPC (Section 316, BNS): A trustee who misappropriates property entrusted to him commits this offence the moment he dishonestly applies the property to his own use. If his motive was to invest it elsewhere and return it with profit, or to use it temporarily in an emergency, the law offers no shelter. The dishonest application at the moment of misappropriation is the gist of the offence, regardless of the motive behind it.

Cheating — Section 415 IPC (Section 318, BNS): What constitutes cheating is the fraudulent or dishonest inducement of the victim to deliver property or to do or omit something that causes harm. The accused's motive — whether the deception was practiced out of desperation or deliberate malice — is irrelevant. The fraudulent inducement is what the law looks at.

Culpable homicide — Section 299 IPC (Section 100, BNS): Illustration (b) to this section is particularly illuminating on the question of motive: "A, knowing that Z is labouring under such a disease that a blow is likely to cause his death, strikes him with the intention of causing bodily injury. Z dies in consequence of the blow. A has committed culpable homicide." A's motive — whether he struck Z out of anger, love, or playfulness — is immaterial. His knowledge of Z's vulnerability and his intention to strike are sufficient.

Motive and Good Faith — A Genuine Complexity

The relationship between motive and the defence of good faith under the General Exceptions is perhaps the one area where motive comes closest to legal relevance, and it deserves honest treatment.

Section 52 IPC (Section 2(22), BNS) defines good faith as doing an act with due care and attention. Several of the General Exceptions — Section 88 IPC (Section 26, BNS) on acts done in good faith for a person's benefit with consent, Section 89 IPC (Section 27, BNS) on acts done for the benefit of a child, and Section 92 IPC (Section 30, BNS) on acts done for a person's benefit without consent — extend protection to acts done in good faith for the benefit of another. Here, the motive — genuine care and concern for the other person — does colour the legal character of the act, but only in the narrow context of these specific provisions, and only when accompanied by due diligence.

A surgeon who, without the patient's consent, performs a necessary operation to save the patient's life during an emergency is protected under Section 92 IPC (Section 30, BNS). His good faith intention — his motive — matters here not as a substantive ingredient of liability, but as a qualification for the protective umbrella of the exception. It does not negate the actus reus, but it negates the criminal character that would otherwise attach to it.

The Distinction in Diagram — Intention, Motive, and Their Legal Consequences

To cement the understanding, it helps to place the concepts side by side.

The Enduring Principle

The law's treatment of motive reflects a carefully considered moral and practical philosophy. To make motive an essential ingredient of crime would produce consequences both unjust and absurd. The most dangerous criminals would escape simply because their psychological motivation remained hidden. Murders committed in cold calculation, thefts executed with elaborate planning, frauds carried out with meticulous care — all could be defended by the simple expedient of concealing the motive. Conversely, acts of genuine criminality committed from desperate need would be excused.

The law avoids both outcomes by focusing on what is knowable and provable: the physical act and the mental state at the moment of its commission. The accused's background reason for acting — his motive — may illuminate the investigation, may strengthen or weaken the circumstantial case, and may influence the sentencing discretion of the court. But it does not constitute, and cannot substitute for, the essential ingredients of the offence. The act and the intention — the two great pillars of criminal liability — stand together, indifferent to the motive that may have erected them.