Criminal law touches everyone, whether or not we ever set foot inside a courtroom. It defines what counts as a crime, decides how the state may investigate and prosecute, and sets the limits on what punishment a person can face. In India, this branch of law went through its biggest transformation in more than 160 years when three new statutes came into force on 1 July 2024, retiring the framework that the country had inherited from British rule.
This guide explains how Indian criminal law works today, what the recent overhaul changed, and why it matters for ordinary people.
From colonial codes to a new framework
For generations, Indian criminal law rested on three pillars. The Indian Penal Code (IPC) of 1860, drafted under Lord Macaulay, defined offences and their punishments. The Code of Criminal Procedure (CrPC), in its 1973 form, laid down the procedure for investigation, arrest, bail, and trial. The Indian Evidence Act of 1872 governed what could be proved in court and how.
These three laws served as the backbone of the justice system for well over a century, but they were widely seen as products of a colonial era that no longer matched the needs of a modern, digital, and rights-conscious society. After a reform committee chaired by Prof. Dr. Ranbir Singh began work in 2020, Parliament passed three replacement statutes that received presidential assent on 25 December 2023 and took effect on 1 July 2024:
- Bharatiya Nyaya Sanhita (BNS), 2023 replaced the IPC and now defines substantive crimes.
- Bharatiya Nagarik Suraksha Sanhita (BNSS), 2023 replaced the CrPC and governs criminal procedure.
- Bharatiya Sakshya Adhiniyam (BSA), 2023 replaced the Indian Evidence Act and deals with evidence.
The stated aims were to deliver justice faster, centre the interests of victims, embrace technology, and shed the language and structure of colonial rule. The new laws are not a clean break from the old principles, however. A great deal of settled doctrine carries over, and decades of court rulings interpreting the earlier codes remain relevant where the substance is unchanged.
The building blocks: substantive law, procedure, and evidence
Indian criminal law can be understood through these same three layers.
Substantive law (the BNS) answers the question: what is a crime, and what is the penalty? It defines offences ranging from theft and cheating to assault, culpable homicide, and murder, and it fixes the range of punishment for each. The BNS retained most familiar offences but reorganised them, introduced community service as a form of punishment for certain petty offences, created a dedicated chapter for crimes against women and children, and added explicit provisions on organised crime and terrorism that the old IPC did not spell out clearly.
Procedural law (the BNSS) answers: how does the state move from a complaint to a verdict? It covers the registration of a First Information Report (FIR), the powers of the police to investigate and arrest, the rules on bail, the conduct of the trial, and the path of appeals. A notable shift is the push toward technology: the BNSS encourages electronic filing, video-recorded statements, and forensic examination at the scene for serious offences, and it sets timelines intended to reduce the long delays that have plagued Indian courts.
Evidence law (the BSA) answers: what can be proved, and how? It governs the difference between admissible and inadmissible material, the weight of oral and documentary evidence, and crucially, the treatment of electronic and digital records, which now feature far more prominently than in the 1872 Act.
How a criminal case typically unfolds
Understanding the journey of a case helps make these layers concrete. It usually begins when an offence is reported and the police register an FIR for a cognizable offence, one serious enough for them to investigate without a magistrate's prior permission. The police then investigate, gathering statements, physical and forensic evidence, and, increasingly, digital records.
If the investigation produces enough material, the police file a charge sheet, and the matter proceeds to trial before the appropriate court. The accused is presumed innocent, and the burden rests on the prosecution to prove guilt beyond reasonable doubt, a cornerstone principle that the new framework preserves. Throughout, the accused has rights: to know the grounds of arrest, to consult a lawyer, to seek bail, and to a fair trial. If convicted, a person can appeal to a higher court, and the system allows the matter to climb, in appropriate cases, all the way to the Supreme Court.
Cognizable versus non-cognizable, bailable versus non-bailable
Two distinctions shape how seriously the system treats an offence. Cognizable offences, such as murder or rape, allow the police to arrest without a warrant and investigate on their own initiative. Non-cognizable offences, such as minor defamation, generally require a magistrate's order before police can act.
Separately, offences are classified as bailable or non-bailable. For a bailable offence, release on bail is a matter of right once conditions are met. For a non-bailable offence, bail is at the discretion of the court, which weighs factors such as the gravity of the charge and the risk that the accused might flee or tamper with evidence. These classifications, carried into the new laws, determine much of what happens in the early, often decisive, stages of a case.
Why the reforms remain a work in progress
The transition has not been without friction. Police forces, prosecutors, and courts across states have had to retrain staff, update software, and adapt to renumbered sections and new procedures, and reviews in the first year pointed to uneven readiness. Some legal scholars and civil-liberties groups have also criticised certain provisions, arguing, for instance, that the offence replacing sedition is broadly worded. Older cases registered before July 2024 continue under the previous codes, so the IPC, CrPC, and Evidence Act will remain part of courtroom life for years as those matters work through the system.
The practical upshot is that India is currently operating two overlapping frameworks: the new laws for fresh cases and the old ones for pending matters.
The bottom line
Indian criminal law in 2026 is recognisably continuous with what came before, yet meaningfully reorganised around speed, victim protection, and digital evidence. For citizens, the core protections endure: the presumption of innocence, the right to a fair trial, and limits on state power. For anyone facing a legal issue, the safest course is to consult a qualified advocate, because the right answer depends heavily on the specific facts, the offence involved, and which framework applies. This guide is general information, not legal advice.