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Section 86 IPC: Intoxication, Intent and Knowledge

Section 86 of the Indian Penal Code, 1860 dealt with offences that require particular knowledge or intent when the act is committed by a person in a state of intoxication. It directed how knowledge is attributed to an intoxicated person, while preserving an exception where the intoxicating substance was administered without the person's knowledge or against the person's will.

Legal position covered: This article explains Section 86 IPC under the law applicable before the Bharatiya Nyaya Sanhita, 2023 came into force on 1 July 2024. It is retained for reference to the IPC framework and matters governed by the earlier law.

Section 86 of the Indian Penal Code, 1860

In cases where an act done is not an offence unless done with a particular knowledge or intent, a person who does the act in a state of intoxication shall be liable to be dealt with as if he had the same knowledge as he would have had if he had not been intoxicated, unless the thing which intoxicated him was administered to him without his knowledge or against his will.

Meaning and Scope of Section 86 IPC

Section 86 formed part of Chapter IV of the IPC dealing with General Exceptions. It applied where criminal liability for an act depended upon a particular knowledge or intent and the person acted while intoxicated.

The provision expressly states that an intoxicated person is to be dealt with as if the person had the same knowledge that would have existed without intoxication, unless the intoxicating substance was administered without knowledge or against the person's will.

Essential Elements of Section 86 IPC

The act must be one that is not an offence unless done with a particular knowledge or intent.
The person must have done the act while in a state of intoxication.
For the purpose of knowledge, the person is dealt with as if possessing the same knowledge that would have existed if not intoxicated.
The statutory rule is subject to the exception for intoxication administered without the person's knowledge or against the person's will.
The text distinguishes the treatment of attributed knowledge from the separate factual question of particular intent.

Knowledge Under Section 86 IPC

The express deeming rule in Section 86 concerns knowledge. A person who voluntarily becomes intoxicated cannot avoid the statutory attribution of the knowledge that the person would have had if sober merely because intoxication affected awareness at the time of the act.

Important distinction: Section 86 expressly says that the intoxicated person is to be dealt with as having the same knowledge as if not intoxicated. The provision does not use the same deeming language to automatically attribute a particular intent. Whether the required intent existed therefore remains connected to the ingredients of the substantive offence and the evidence in the case.

Particular Intent and Intoxication

The opening words of Section 86 refer to an act that is not an offence unless done with a particular "knowledge or intent." The operative rule, however, specifically directs attribution of the same knowledge the person would have had if not intoxicated. Accordingly, knowledge and particular intent should not be treated as interchangeable concepts when applying the provision.

Exception for Involuntary Intoxication

The concluding words of Section 86 provide an important exception where the intoxicating substance was administered without the person's knowledge or against the person's will. This language connects Section 86 with the protection for qualifying involuntary intoxication stated in Section 85 IPC.

Section 85 and Section 86 IPC

Provision	Subject	Statutory Focus
Section 85 IPC	Intoxication caused without knowledge or against will	Provides an exception where qualifying intoxication makes the person incapable of knowing the nature of the act or that it is wrong or contrary to law.
Section 86 IPC	Offence requiring particular intent or knowledge	Deals with liability and attribution of knowledge when an act is done in a state of intoxication, subject to the stated exception for involuntary intoxication.

Voluntary Intoxication Is Not a General Exemption

Section 86 should not be read as creating a general defence merely because an accused person was intoxicated. Its express rule treats the intoxicated person as possessing the knowledge that would have existed without intoxication, unless the statutory exception concerning involuntary administration applies.

Read Section 86 with the Substantive Offence

Section 86 does not itself prescribe a punishment or define a standalone offence. Its significance depends upon the substantive offence alleged and the mental element that offence requires. The required knowledge or intent must therefore be identified from the relevant penal provision before considering the effect of intoxication under Section 86.

Related IPC General Exceptions

The preceding provision, Section 85 IPC, dealt with incapacity caused by involuntary intoxication. The following provision, Section 87 IPC, concerned certain acts done by consent that were neither intended nor known to be likely to cause death or grievous hurt.

Current-Law Note

The Bharatiya Nyaya Sanhita, 2023 came into force on 1 July 2024, subject to the notified exception concerning section 106(2). The corresponding current provision on an offence requiring particular intent or knowledge committed by a person who is intoxicated is Section 24 of the Bharatiya Nyaya Sanhita, 2023. This article is intentionally focused on Section 86 IPC and the legal position before implementation of the BNS.