Definitions and Classification of Offences (s.2 BNSS) — BNSS (Criminal Law II) Notes

Definitions and Classification of Offences (s.2 BNSS)

A single case passes through the hands of three different players — the police investigate, the Magistrate holds an inquiry, the court conducts a trial — and if a person is found dead, a fourth process, the inquest, runs alongside. Confuse them and you cannot answer a single procedure question correctly, because each has its own actor, stage and purpose.

Section 2 BNSS (like s.2 CrPC) is the dictionary of the Sanhita. Master four process-words and the classification of offences.

A. The four process words

Investigation (s.2(1)(l)). All the steps taken by a police officer (or a person authorised by a Magistrate, other than the Magistrate himself) to collect evidence — visiting the scene, arresting, questioning, seizing. It is a police function; it precedes the court.
Inquiry (s.2(1)(k)). Every inquiry, other than a trial, conducted by a Magistrate or court. Its object is not to decide guilt but to prepare the ground — e.g. an inquiry into whether there is enough to commit a case to the Sessions Court. It stops short of recording a verdict.
Trial. Not separately defined, but understood as the judicial proceeding that ends in conviction or acquittal. It begins after charge (or after the accused appears in a summons case) and is conducted by a court.
Inquest (s.194 BNSS [s.174 CrPC]). An inquiry by the police or a Magistrate into the cause of an unnatural death (suicide, accident, or death raising suspicion of foul play). It answers “how did this person die?”, not “who is guilty?”.

The natural order: inquest (if there is a death) → investigation (police) → inquiry (Magistrate) → trial (court).

B. Other key definitions

Victim (s.2(1)(y)). A person who has suffered loss or injury by the act complained of, including the victim’s guardian or legal heir — a BNSS-widened, rights-bearing definition.
Bail (s.2(1)(b)); bail bond (s.2(1)(d)); bond (s.2(1)(e)). Bail is release of an accused on assurance to appear; a bail bond is that undertaking with sureties; a bond is a personal undertaking without sureties. (These are new express definitions in the BNSS.)
Audio-video electronic means (s.2(1)(a)). Any communication device for recording, storing or transmitting audio-video content — the definition that powers e-FIR, video-recorded search and e-trials.

C. Classification of offences (First Schedule)

Every offence is sorted on three cross-cutting axes:

Cognizable v. non-cognizable (s.2(1)(g) and (o)). In a cognizable offence the police may arrest without a warrant and investigate without a Magistrate’s order (usually the graver offences — murder, rape, theft). In a non-cognizable offence the police may not arrest without warrant and need a Magistrate’s order to investigate (minor offences — simple hurt, defamation).
Bailable v. non-bailable (s.2(1)(c)). In a bailable offence bail is a matter of right; in a non-bailable offence bail is at the discretion of the court.
Summons-case v. warrant-case (s.2(1)(x), (z)). A warrant-case is one punishable with death, life imprisonment, or imprisonment exceeding two years; every other case is a summons-case. This decides which trial procedure applies.

⚠️ DON’T CONFUSE — cognizable v. non-cognizable

Cognizable = police may arrest without warrant and investigate without a Magistrate’s order (grave offences). Non-cognizable = no arrest without warrant, and the police need a Magistrate’s order (s.174 BNSS [s.155 CrPC]) before investigating (minor offences). The First Schedule tells you which is which — never guess from the name.

⚠️ DON’T CONFUSE — bailable v. non-bailable

Bailable = bail is the accused’s right; the officer or court must release him on bail. Non-bailable = bail is a discretion; the court may grant or refuse it after weighing the facts. “Non-bailable” does not mean “no bail” — it means “bail is not automatic”.

🧩 WORKED EXAMPLE — sorting one offence

Facts. A is accused of theft under s.303 BNS.

Rule. The First Schedule classifies theft as cognizable, non-bailable, and triable as a warrant case (it can carry more than two years).

Apply. So the police may arrest A without a warrant and investigate on their own; A’s bail is discretionary; and the trial runs on the warrant-case track.

Conclusion. One glance at the Schedule fixes the police powers, the bail rule and the trial procedure at once.

Section 2(1)(l) BNSS: “‘investigation’ includes all the proceedings under this Sanhita for the collection of evidence conducted by a police officer or by any person (other than a Magistrate) who is authorised by a Magistrate in this behalf.”

In Simple Terms: Investigation is the evidence-gathering stage done by the police, not the court. If a Magistrate is doing the fact-finding, it is an inquiry, not an investigation.

flowchart LR
    A["Unnatural death?"]:::qn --> B["Inquest<br/>police / Magistrate<br/>cause of death"]:::leaf
    B --> C["Investigation<br/>police<br/>collect evidence"]:::leaf
    C --> D["Inquiry<br/>Magistrate<br/>anything short of trial"]:::leaf
    D --> E["Trial<br/>court<br/>conviction or acquittal"]:::leaf
    classDef qn fill:#FDE7C9,stroke:#B45309,color:#000;
    classDef leaf fill:#E6F3FF,stroke:#1E3A8A,color:#000;
    linkStyle default stroke:#888,stroke-width:1px;

Case Laws

H.N. Rishbud v. State of Delhi (1955) — sets out the stages of investigation (proceeding to the spot, ascertaining facts, arrest, collection of evidence, formation of opinion).
State of M.P. v. Mubarak Ali (1959) — clarifies “inquiry” as a proceeding by a Magistrate distinct from and preliminary to a trial.

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