Criminal Case Procedure in India: FIR, Investigation, Charge, Trial, Evidence and Judgment

What the current criminal-procedure framework is

The BNSS replaced the Code of Criminal Procedure, 1973 for proceedings governed by the new law and came into force on 1 July 2024, subject to the statutory transition provisions and the commencement notification. The Bharatiya Nyaya Sanhita, 2023 (BNS) supplies the principal substantive offence code, while the Bharatiya Sakshya Adhiniyam, 2023 (BSA) supplies the general evidence framework for judicial proceedings. A criminal case therefore requires the user to separate three questions: what offence is alleged, what procedure governs the case, and what evidence is legally relevant and provable.

Older cases can involve transition questions. A user should not assume that a pre-July 2024 event or proceeding is procedurally governed in exactly the same way as a new BNSS case. The file, order sheets and applicable saving provisions should be checked before relying on a generic current-procedure summary.

Step 1: FIR, police information or complaint to a Magistrate

For cognizable offences, Section 173 BNSS governs information to police. Chapter XIII then deals with police investigation, including the power to investigate, examination of witnesses, searches, case diaries, custody-related procedure where investigation cannot be completed within twenty-four hours, and the police report on completion of investigation. Non-cognizable information is treated differently under Section 174.

A case may instead begin as a complaint to a Magistrate. Chapter XVI contains the complaint procedure. Section 223 deals with examination of the complainant, while Sections 225 to 227 address postponement of process, dismissal of a complaint and issue of process. The Supreme Court in a May 2026 judgment held that the first proviso to Section 223(1), which gives the accused an opportunity of being heard before cognizance on a complaint, is mandatory. That development makes it particularly important to identify whether the matter is a police-report case or a complaint case rather than describing both as a single route.

Step 2: investigation and collection of material

Investigation is not the trial. The police collect material to determine whether there is sufficient basis to proceed and to place the result before the competent court. BNSS Sections 175 to 193 cover major parts of this stage, including investigation of cognizable cases, witness examination, statements, search, remand-related procedure, case diaries and the final police report.

The practical file usually needs to be read chronologically: initial information, site or seizure material, medical or forensic material where relevant, witness statements, electronic records, arrest or notice documents, remand orders, expert reports and the final report. The evidentiary value of a police statement is not identical to testimony given and tested before the trial court. Trial preparation should therefore distinguish investigative material from evidence that must ultimately be proved under the BSA and applicable special law.

Step 3: arrest, notice, custody and bail are separate procedural questions

Not every criminal case involves arrest, and arrest does not determine guilt. Where a person is arrested, the BNSS regulates production before the competent Magistrate and further custody. Section 187 deals with the procedure where investigation cannot be completed within twenty-four hours. Bail analysis depends on whether the offence is bailable or non-bailable, the stage of proceedings and the applicable statutory provisions or special-law restrictions.

For bail-specific detail, use the separate Regular Bail and Anticipatory Bail guides. Keeping bail separate from the trial pathway avoids the common mistake of assuming that grant or refusal of bail predicts the final merits of the prosecution.

Step 4: police report, cognizance and supply of documents

Section 193 BNSS governs the police report on completion of investigation. The Magistrate's cognizance powers appear in Section 210. Once the court proceeds, the accused must receive the documents required by the applicable BNSS provisions. Sections 230 and 231 address supply of the police report, statements and other documents in the circumstances covered by those provisions.

If the offence is triable exclusively by the Court of Session, Section 232 provides for commitment of the case. This is a procedural transfer into the court competent to conduct the Sessions trial, not a finding that the accused is guilty. At this stage, the exact police report, annexures, forensic material and the order taking cognizance should be matched against the charges later proposed or framed.

Typical criminal-case pathway

Step 5: charge defines the accusation to be tried

Chapter XVIII BNSS governs charges. Section 234 addresses the contents of a charge, with following provisions dealing with particulars, errors, alteration of charge and separate charges for distinct offences. The charge stage is important because the prosecution must prove the legally required ingredients of the offence actually being tried, not merely establish that suspicious or undesirable conduct occurred.

For practical analysis, create an ingredient map: each charged offence, each legal ingredient, the prosecution evidence said to support that ingredient, and the principal defence or evidentiary objection. This is more useful than organizing a file only by date because it connects procedural documents to the questions the trial court must decide.

Step 6: the trial format depends on the case category

The BNSS does not prescribe one trial script for every offence. A Sessions case, a warrant-case before a Magistrate and a summons-case have different statutory structures. For example, Chapter XXI governs summons-cases and Section 274 provides that the particulars of the offence are stated to the accused without a formal charge being necessary in the same manner as a warrant-case charge. More serious matters may proceed through the Sessions or warrant-case framework.

This distinction affects discharge, framing of charge or statement of accusation, the sequence of prosecution evidence, defence evidence and other applications. The First Schedule to the substantive offence law and any special statute should therefore be checked alongside the BNSS before assuming which trial chapter applies.

Step 7: prosecution evidence must be proved and can be tested

The prosecution ordinarily leads evidence directed to the ingredients of the charge. Witnesses may be examined and cross-examined, documents and electronic records may be tendered, and expert or forensic material may be produced where relevant. The BSA governs general evidentiary principles, including documentary and electronic evidence, subject to the BNSS and any special statute.

The existence of a document in the police file does not automatically establish every fact stated in it. Authentication, admissibility, proof, relevance and the opportunity to test evidence may all matter. A useful trial-preparation record separates: material collected during investigation, material formally exhibited, testimony actually given before the court, admissions, and material that the court ultimately relies upon.

Information-gain framework: charge-to-proof matrix

This matrix does not decide guilt. It is a method for reading a complex criminal file without confusing allegation, investigation material, trial evidence and the final judicial finding.

Step 8: statement of the accused, defence and final arguments

The accused receives the procedural opportunities provided by the applicable BNSS trial chapter, including the opportunity to answer the prosecution case in the manner prescribed by law and to lead defence evidence where appropriate. The defence is not required to prove the prosecution case; the prosecution bears the burden imposed by criminal law, while particular statutory presumptions or defence burdens can alter specific issues.

Final arguments should be tied to the charge and the evidence actually admitted in the record. Useful questions include whether every required ingredient has legally sufficient proof, whether witnesses materially corroborate or contradict one another, whether electronic or documentary evidence has been properly connected to the case, and whether a special statutory presumption applies.

Step 9: judgment, sentence and post-judgment remedies

A criminal judgment must resolve the case on the evidence and law applicable to the charge. If there is an acquittal, the prosecution or complainant may have only those challenge rights provided by law. If there is a conviction, sentence, compensation and other consequential orders may follow before or with the final disposition, depending on the offence and statutory framework. Appeal, suspension of sentence, revision or other remedies depend on the court, order and governing provision.

Delhi High Court's Practice Direction No. 180/Rules/DHC dated 26 May 2026 requires judgments rendered by criminal courts in criminal petitions and trials to append tabulated lists of prosecution, defence and court witnesses, exhibits and material objects, with a tailored approach permitted in complex cases involving unusually voluminous material. That direction illustrates why the trial record should be organized by what was actually produced and exhibited, not merely by what appeared in the investigation file.

Police-report case and complaint case: why the distinction matters

Delhi, Gurgaon and NCR practice: use the current court source

Administrative filing, e-filing, certified-copy access, process fee, courtroom allocation and local criminal practice can differ between Gurgaon District Court, Delhi district courts, Delhi High Court, Punjab and Haryana High Court and the Supreme Court. A national statutory guide therefore cannot replace the current court website, order sheet or registry direction.

For Delhi matters, the Delhi High Court notifications and practice-directions portal should be checked for current directions. For Gurgaon district matters, use the official district judiciary and eCourts routes linked from the relevant Gurgaon District Court page. Current cause lists and hearing information should be taken from the official live system rather than copied into a static guide.

Criminal-case file readiness checklist

Official sources

• India Code: Bharatiya Nagarik Suraksha Sanhita, 2023
• India Code: Bharatiya Nyaya Sanhita, 2023
• India Code: Bharatiya Sakshya Adhiniyam, 2023
• Delhi High Court: Practice Direction No. 180/Rules/DHC dated 26 May 2026
• Supreme Court of India: May 2026 judgment concerning Section 223 BNSS complaint procedure
• LawyerInGurgaon official court and government resource directory