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Criminal procedure: meaning, background and salient features of the BNSS

Bharatiya Nagarik Suraksha Sanhita · Unit I · Topic 1 of 25 · 7 min read

What procedural criminal law does, how the Bharatiya Nagarik Suraksha Sanhita, 2023 replaced the Code of Criminal Procedure, 1973, its main new features, and the constitutional guarantees under Articles 14, 20, 21 and 22 that every procedure must satisfy.

On this page
  1. 1. Meaning and importance of criminal procedure
  2. 2. Background: from the 1861 Code to the BNSS
  3. 3. Salient features of the BNSS
  4. 4. Constitutional dimensions
  5. How this is examined
Cases checked to exist. Read the judgment before quoting a holding.

Every case cited here has been checked to exist — the citation resolves and names the right parties. The propositions attributed to each case have not been verified line by line against the judgment. Case names link through to the full judgment: read it before quoting a holding in an examination answer, and never carry a proposition from notes into court on trust.

The frame for the whole paper. Substantive criminal law (the BNS) says what is an offence and what it costs. Procedural law (the BNSS) says how the State finds the offender, brings him to court and tries him. Since Maneka Gandhi, that procedure must be fair, just and reasonable under Article 21. Every later topic, from arrest to appeal, is tested against that standard. The January 2026 paper set “Explain the Constitutional dimensions of BNSS, 2023” as a 10-mark question.

1. Meaning and importance of criminal procedure

Criminal procedure is the body of rules by which the State investigates offences, collects evidence, secures the attendance of the accused, tries him, passes sentence and corrects errors on appeal or revision. It is adjective law: it has no purpose of its own apart from enforcing the substantive law. Section 4 of the Bharatiya Nagarik Suraksha Sanhita, 2023 (BNSS) (old s.4 CrPC) says so directly: all offences under the Bharatiya Nyaya Sanhita, 2023 shall be investigated, inquired into, tried and otherwise dealt with according to the Sanhita, and offences under other laws are dealt with in the same way, subject to any special procedure those laws lay down. Section 5 (old s.5) saves special and local laws.

Its importance lies in three things:

2. Background: from the 1861 Code to the BNSS

The first uniform Code of Criminal Procedure was enacted in 1861, followed by Codes of 1872, 1882 and 1898. The 1898 Code lasted until the Code of Criminal Procedure, 1973, which was based on the Forty-first Report of the Law Commission (1969) and came into force on 1 April 1974. The 1973 Code separated the judiciary from the executive (Judicial and Executive Magistrates), abolished the jury, and introduced anticipatory bail.

The Code was amended many times, notably in 2005 (plea bargaining) and in 2013 and 2018 after amendments to the law on sexual offences. In 2023 Parliament replaced the three colonial-era criminal statutes. The BNSS (Act 46 of 2023) received assent on 25 December 2023 and came into force on 1 July 2024, along with the Bharatiya Nyaya Sanhita and the Bharatiya Sakshya Adhiniyam. Section 531 repeals the CrPC but provides that any appeal, application, trial, inquiry or investigation pending on the date the Sanhita came into force continues under the old Code. The syllabus describes the change as a shift of attention “from penalty to nyaya”.

Trap. The BNSS is largely a re-enactment of the CrPC with renumbering. Most chapters keep the old structure and wording. Do not claim that the whole procedure is new; write that the Sanhita keeps the framework of 1973 and adds specific changes, and name them.

3. Salient features of the BNSS

The BNSS has 531 sections in 39 chapters (the CrPC had 484 sections). The changes most often asked for are these:

4. Constitutional dimensions

Procedure is where the Constitution meets the citizen most directly. The BNSS must be read with the following guarantees.

The constitutional points also run the other way. Some new provisions raise questions under Article 21 that an answer may mention briefly: trial in absentia (s.356) against the right to be present and defended; handcuffing (s.43(3)) against the dignity cases; and police custody now sought at any time within the first 40 or 60 days (s.187(2)) rather than only in the first 15.

How this is examined

Expect “Explain the constitutional dimensions of BNSS, 2023” (January 2026) or “Discuss the background and salient features of the BNSS.” For the first, organise the answer Article by Article (21, 22, 20(2), 20(3), 14, 39A), name the BNSS section that carries each one, and close with the new provisions open to challenge. For the second, give a short history (1861, 1898, 1973, 2023), then the features under headings: technology, forensics, timelines, victims, Zero FIR, trial in absentia, community service. A short note may ask for “salient features” alone; use the bullet list in section 3.

Now try the real questions: Bharatiya Nagarik Suraksha Sanhita past question papers.