Unit IV — Offences Against the State, Public Tranquillity, Public Justice & Property

“An assembly of five or more becomes unlawful the moment its common object turns to force or crime — every member is then liable for what the assembly does.” — the principle of constructive liability in unlawful assembly

Offences Against the State & Public Tranquillity

Offences against the State (Ss.147–158) protect the very existence and security of the nation: waging or attempting to wage war against the Government of India (S.147), collecting arms with intent to wage war (S.149), and — replacing the old “sedition” — S.152, which penalises acts endangering the sovereignty, unity and integrity of India (exciting secession, armed rebellion or subversive activities). The BNS also introduces a statutory definition of a terrorist act (S.113), with the choice between proceeding under the BNS or the UA(P)A vested in a senior police officer.

Offences against public tranquillity turn on collective disorder:

Under unlawful assembly, every member is constructively liable for an offence committed in prosecution of the common object (the old S.149) — liability attaches by membership, not by the individual blow.

Public Justice, Mischief, Trespass & Forgery

flowchart TD
    A["Property & Allied Offences (Unit IV)"]:::root
    A --> B["MISCHIEF (S.324)<br/>intent/knowledge of WRONGFUL loss or<br/>damage by destroying property"]:::leaf
    A --> C["CRIMINAL TRESPASS (S.329)<br/>entry on property to commit an<br/>offence / intimidate / annoy"]:::leaf
    A --> D["FORGERY (Ss.336-338)<br/>making a false document to cause<br/>damage, support a claim or commit fraud"]:::leaf
    A --> E["OFFENCES AGAINST PUBLIC JUSTICE<br/>false evidence, fabrication,<br/>screening offenders"]:::leaf

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    classDef leaf fill:#E6F3FF,stroke:#1E3A8A,color:#000;
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Offences against public justice safeguard the administration of justice — giving/fabricating false evidence (Ss.227–229), screening an offender and harbouring. Mischief (S.324) requires intent or knowledge of causing wrongful loss or damage. Criminal trespass (S.329) and house-trespass protect possession, and forgery (Ss.336–338) punishes the making and use of false documents.

✏️ Sample Solved Problem (IRAC Method)

Problem: R pulls down H’s house-wall to stop a fire from spreading to neighbouring houses. H wants to prosecute R for mischief. Advise H.

I — Issue

Whether R is guilty of mischief for damaging H’s wall, where he did so to prevent a spreading fire.

R — Rule

• Section 324 (mischief) requires intent or knowledge of causing wrongful loss or damage to property.
• Section 19 (necessity) protects an act done in good faith to prevent a greater harm.

A — Analysis

The decoy is the obvious damage — R undeniably pulled down H’s wall, which on its face looks like mischief. But mischief requires that the loss be wrongful, and that ingredient is answered by R’s purpose: he acted in good faith to prevent a greater harm — the spread of a fire threatening life and far more property. Demolishing a wall to create a firebreak is the choice of the lesser evil, so the loss caused is not wrongful, and an essential ingredient of mischief is missing. Independently, necessity (S.19) justifies the act. The proper analysis is not “was there damage?” (there was) but “was the damage wrongful?” — and here it was not.

C — Conclusion

R is not guilty of mischief. The damage was not wrongful — it was done in good faith to avert a greater harm — and necessity under S.19 protects R. H’s prosecution must fail.

📄 The full bundle (₹199) has the complete Unit IV — offences against the State (including S.152 and the terrorist-act provision), unlawful assembly/rioting/affray, public-justice offences, mischief, criminal trespass and forgery with the new BNS sections — plus the Question Bank’s model answers to the solved problems (mischief vs necessity, trespass, unlawful assembly, forgery). Get Notes + Question Bank — ₹199