IPC Section 104: Private Defence of Property and BNS Section 42
Section 104 of the Indian Penal Code, 1860 (IPC) explains when a person defending property against theft, mischief or criminal trespass may cause harm to a wrongdoer other than death. Its corresponding provision under the Bharatiya Nyaya Sanhita, 2023 (BNS), is Section 42. The BNS came into force on 1 July 2024, subject to applicable commencement and saving provisions.
Text and meaning of IPC Section 104
If the offence, the committing of which, or the attempting to commit which occasions the exercise of the right of private defence, be theft, mischief, or criminal trespass, not of any of the descriptions enumerated in the last preceding section, that right does not extend to the voluntary causing of death, but does extend, subject to the restrictions mentioned in section 99, to the voluntary causing to the wrong-doer of any harm other than death.
In simple terms, where the threatened property offence does not fall within the more serious categories specified in IPC Section 103, the defender may use legally justified non-fatal force, but may not deliberately kill the wrongdoer solely to protect property.
Current law: BNS Section 42
Section 42 of the Bharatiya Nyaya Sanhita, 2023 deals with when the right of private defence of property extends to causing harm other than death. It covers theft, mischief or criminal trespass that does not fall within the serious offences described in BNS Section 41, subject to the restrictions under BNS Section 37.
The structure corresponds broadly to IPC Sections 104, 103 and 99 respectively. The IPC remains relevant to acts committed before the new law commenced, subject to the applicable legal and transitional rules.
Conditions and legal limits
- Real threat: There must be an offence or attempted offence against property, not a mere suspicion without reasonable grounds.
- Non-fatal harm: The protection under IPC Section 104 or BNS Section 42 does not authorize voluntarily causing death.
- No excessive force: Under IPC Section 99 and BNS Section 37, more harm than necessary for defence cannot be inflicted.
- Public-authority restrictions: The statutory limits also address certain acts of public servants and circumstances where there is time to seek protection from public authorities.
- Duration: The right lasts only for the legally relevant period of danger; see IPC Section 105 and BNS Section 43.
Illustrative situations
Attempted theft without serious danger
A person attempts to take a bicycle. The owner may take reasonable steps to prevent the theft or recover control during the incident, but cannot intentionally kill the thief merely to protect the bicycle.
Criminal trespass
An intruder unlawfully enters property without circumstances giving rise to a reasonable apprehension of death or grievous hurt. Reasonable defensive action may be justified, but deliberate lethal force is not justified solely by the trespass.
More serious property offences
Robbery, specified forms of house-breaking, or property offences creating a reasonable apprehension of death or grievous hurt require separate analysis under IPC Section 103 or BNS Section 41. The availability of lethal force is never automatic; statutory restrictions still apply.
Related provisions explained
| IPC | BNS | Subject |
|---|---|---|
| Section 97 | Section 35 | Right of private defence of body and property |
| Section 99 | Section 37 | Acts against which there is no right and limits on defence |
| Section 103 | Section 41 | When defence of property may extend to causing death |
| Section 104 | Section 42 | When defence of property extends to harm other than death |
| Section 105 | Section 43 | Commencement and continuance of defence of property |
Frequently asked questions
Can someone kill a thief to protect property?
Not for ordinary theft alone. Deliberately causing death may be defensible only where the facts meet the serious statutory categories and other legal restrictions, such as those under BNS Sections 41 and 37.
Does Section 104 permit any level of non-fatal force?
No. It is subject to restrictions on necessity and excess force. Whether particular conduct is justified depends on the circumstances and evidence.
Which law applies after 1 July 2024?
For conduct occurring after commencement, the relevant BNS provisions generally govern. Earlier incidents and proceedings require consideration of the applicable saving and transitional provisions.
Official legal sources
Consult the India Code official legislation database for the Bharatiya Nyaya Sanhita, 2023 and Indian Penal Code, 1860, and the Ministry of Home Affairs for criminal-law implementation notifications. Check the latest authoritative text and any applicable judicial interpretation before relying on a provision.
This article is general legal information, not advice for a particular dispute. Updated: 28 October 2026.