What is IPC Section 86?
IPC Section 86 falls within Chapter IV of the Indian Penal Code ("General Exceptions"), the chapter that sets out circumstances in which an act that would otherwise be an offence is excused, or in which the ordinary rules for determining criminal liability are modified. Section 86 deals specifically with offences that require a particular knowledge or intent as part of their definition — many offences under the Code only become criminal if the accused acted with a specific mental state, and Section 86 governs how that mental state is assessed when the accused was intoxicated at the time.
The rule Section 86 lays down is deliberately narrow, and courts have consistently distinguished it from a general "drunkenness defence." Rather than excusing the offender, it imputes knowledge to the intoxicated person as though they had not been intoxicated — meaning a person cannot escape liability for an offence requiring knowledge simply by pointing to their own voluntary drunkenness. The provision only steps back from this imputation where the intoxication was not the person's own choice — where the intoxicant was administered without their knowledge or against their will.
Important Update: IPC to BNS Transition
With effect from 1 July 2024, the Indian Penal Code has been replaced by the Bharatiya Nyaya Sanhita (BNS), 2023 for offences committed on or after that date. Section 86 IPC now corresponds to Section 24 of the BNS, which carries forward the identical rule without substantive change.
Legal Provision — Text of Section 86 IPC
This provision must be read together with Section 85 (which can provide a complete defence where intoxication, administered without the person's knowledge or against their will, leaves them entirely incapable of knowing the nature of their act, or that it is wrong or contrary to law) — the two sections work together to define how intoxication interacts with criminal liability.
Section 85 vs. Section 86 — Two Different Rules on Intoxication
Sections 85 and 86 are frequently confused, but they address different situations and have very different effects on liability.
Complete defence for incapacitating, involuntary intoxication
Provides a full defence — the act is not an offence at all — where the person was, by reason of intoxication, incapable of knowing the nature of their act or that it was wrong or contrary to law, provided the intoxicant was administered without their knowledge or against their will.
Limited rule for offences requiring particular knowledge or intent
Does not provide a complete defence — instead, it imputes knowledge to the intoxicated person as if sober, for offences that specifically require a particular knowledge or intent, unless the intoxication was itself involuntary.
In practice, Section 85 is the narrower, more powerful defence — but it is rarely available, since it requires the intoxication itself to have been involuntary and totally incapacitating. Section 86 is the provision more commonly at issue, and it works against, rather than for, the intoxicated accused in most cases — voluntary intoxication does not reduce the "knowledge" the law attributes to a person, though courts have distinguished this imputed knowledge from actual "intent," which remains a question of fact to be gathered from all the circumstances, including the extent of intoxication.
How Section 86 Affects Criminal Liability
| Nature | A general exception affecting how mens rea (the mental element) is assessed — not a substantive offence, so it carries no punishment, cognizability, or bail classification of its own |
|---|---|
| General Effect | Voluntary intoxication does not reduce the "knowledge" imputed to the accused for offences requiring particular knowledge or intent |
| Exception | Where the intoxicant was administered without the accused's knowledge or against their will, this automatic imputation does not apply, and the accused's actual mental state is assessed on the facts |
| Distinct From | Section 85, which can provide a complete defence in narrower circumstances of total, involuntary incapacitation |
Because Section 86 does not itself create or excuse any offence, it is invoked as part of the analysis of whether the prosecution has established the mental element required for whatever substantive offence the accused is charged with — most commonly, offences like murder or grievous hurt that require specific intent or knowledge.
Key Elements of Section 86
The act is only an offence if done with a particular knowledge or intent
Section 86 applies specifically to offences of this kind — not to offences that do not require any specific mental element.
The accused did the act in a state of intoxication
The accused must actually have been intoxicated at the relevant time.
General rule — knowledge is imputed as if sober
Unless the exception applies, the accused is treated as having the same knowledge they would have had while sober.
Exception — intoxication administered without knowledge or against will
Where the intoxicant was given to the accused without their knowledge, or against their will, the automatic imputation of knowledge does not apply.
If You Are Involved on Either Side of a Section 86 Question
Section 86 typically comes up as part of the broader factual dispute in a serious criminal case, where the accused's state of intoxication at the time of the offence is in question. What matters depends on which side of that question you are on.
If You Are the Prosecution / Complainant's Side
- Gather evidence of the accused's intoxication being voluntary — how, when, and by whom the intoxicant was consumed or administered.
- Establish the surrounding circumstances relevant to knowledge and intent, since Section 86 imputes knowledge but courts still examine intent as a question of fact.
- Where the offence requires specific intent, be prepared to show this from the accused's conduct, statements, and the broader circumstances, not merely from the fact of intoxication.
- Consult a criminal lawyer to build the case around both the imputed-knowledge rule and the factual evidence of intent.
If You Are the Accused Relying on Intoxication
- Understand that voluntary intoxication will not, by itself, reduce the knowledge the law attributes to you for offences requiring particular knowledge.
- If the intoxicant was administered to you without your knowledge or against your will, gather evidence of this, since it takes you outside Section 86's automatic imputation.
- Focus on whether the prosecution can actually establish the specific intent the offence requires, as distinct from mere imputed knowledge.
- Consult a criminal lawyer to assess whether Section 85's narrower, complete defence might also be relevant on your facts.
Voluntary Intoxication Is Not a General Excuse
A common misconception is that being drunk provides some automatic reduction in criminal liability. Section 86 makes clear this is not the case for offences requiring knowledge — the law simply refuses to let voluntary intoxication lower the standard of knowledge attributed to the accused. Intent, however, remains a separate factual question that intoxication can genuinely bear upon, and this distinction is often central to how such cases are argued.
How Section 86 Is Typically Examined at Trial
The Offence Occurs While the Accused Was Intoxicated
The accused commits an act that would only be an offence if done with a particular knowledge or intent, while in a state of intoxication.
Investigation Into the Nature of the Intoxication
The Investigating Officer gathers evidence of how the intoxication came about — voluntary consumption, or administration without the accused's knowledge or against their will.
Charges Framed on the Underlying Offence
The accused is charged with the substantive offence in question (such as murder or grievous hurt), with Section 86 relevant to how the required mental element is assessed.
Trial — Knowledge Imputed, Intent Examined on Facts
At trial, the court applies Section 86's imputation of knowledge (unless the involuntary-intoxication exception is established), while separately examining the evidence bearing on the accused's actual intent.
Outcome
If the prosecution establishes the offence's ingredients (including the imputed knowledge and any separately required intent), a conviction can follow on the underlying offence; Section 86 itself results in no separate punishment.
Judicial Interpretation of Section 86
Courts, including the Supreme Court, have repeatedly examined how Section 86 applies in serious cases, particularly murder prosecutions where the accused claims intoxication affected their mental state. This is general legal information for awareness — always have a lawyer verify how these principles apply to your specific facts.
Voluntary Intoxication Does Not Reduce Imputed Knowledge
The Supreme Court has held, in a murder case where the accused argued that intoxication should reduce culpability, that the general exception for intoxication applies only where the accused was, by reason of intoxication, genuinely incapacitated from knowing the nature of the act or that it was likely to cause serious harm — and only where the intoxicant was administered without the accused's knowledge or against their will. Absent evidence of both these conditions, an accused's voluntary intoxication does not reduce the liability otherwise attaching to the offence.
Knowledge Is Imputed, But Intent Remains a Question of Fact
Courts have distinguished between "knowledge," which Section 86 imputes to the intoxicated accused as if sober, and "intent," which remains a matter to be established from the evidence and surrounding circumstances — an accused's degree of intoxication can still be relevant to whether the specific intent an offence requires has genuinely been proved, even where the requisite knowledge is imputed by operation of the section.