Investigation is the systematic process of evidence collection by police to determine whether an offence has been committed and who committed it. Preventive action (S.148-172) empowers police to act proactively to prevent crime before it occurs. Together, these form the dual mandate of policing: reactive (investigation) and proactive (prevention).
Legal Framework
| Provision | Subject |
|---|---|
| S.148-150 | Prevention of cognizable offences |
| S.151-162 | Police officer's powers of preventive arrest |
| S.148 BNSS (formerly S.129 CrPC) | Dispersal of unlawful assemblies |
| S.164-172 | Public nuisance removal |
| S.176-196 | Investigation procedure |
| S.180 BNSS (formerly S.161 CrPC) | Examination of witnesses by police |
| S.183 BNSS (formerly S.164 CrPC) | Statements before Magistrate (confessions) |
| S.185 BNSS (formerly S.165 CrPC) | Search by police officer |
| S.193 BNSS (formerly S.173 CrPC) | Police report (charge sheet) |
Why: Investigation is the foundation upon which prosecution is built. Preventive powers exist because waiting for an offence to occur and then investigating is insufficient; the State must also act to prevent harm before it materializes.
Investigation Procedure (S.176-196)
Steps of Investigation:
| Step | Section | Detail |
|---|---|---|
| Proceeding to spot | S.176 | Mandatory forensic team for 7+ year offences |
| Crime scene management | S.176 | Videography of scene mandatory |
| Examination of witnesses | S.180 | Reduced to writing; not on oath |
| Statement before Magistrate | S.183 | Voluntary confession; Magistrate ensures voluntariness |
| Search and seizure | S.185 | Videography mandatory; two independent witnesses |
| Arrest of accused | S.35-62 | Subject to conditions and safeguards |
| Identification proceedings | S.349 | Voice, handwriting, finger impressions, biological samples |
| Police diary | S.192 | Daily recording of investigation steps |
| Filing report | S.193 | Charge sheet (90/180 days) or closure report |
Examination of Witnesses (S.180):
| Rule | Detail |
|---|---|
| Reduced to writing | IO records statement in writing |
| Not on oath | Police cannot administer oath |
| Person bound to answer | Except questions tending to self-incrimination |
| Statement not signed | Unlike S.183 (Magistrate) statements |
| Use at trial | Only for contradiction (S.162 equivalent: S.181) |
Why: Statements to police are not on oath because police lack judicial authority. They cannot be used as substantive evidence because the risk of police pressure makes them unreliable as independent proof.
Statements Before Magistrate (S.183):
| Requirement | Detail |
|---|---|
| Magistrate | Any Magistrate of the district where the information was registered, whether or not he has jurisdiction in the case (S.183(1)); a police officer with magisterial powers cannot record a confession (second proviso) |
| Audio-video | May be recorded by audio-video electronic means in the presence of the accused's advocate (first proviso) |
| Warning | Person told he is not bound to confess and that it may be used as evidence against him (S.183(2)) |
| Voluntary | Recorded only if, on questioning, the Magistrate believes it is voluntary (S.183(2)) |
| Refusal | If the person declines, he shall not be remanded to police custody (S.183(3)) |
| Signed | Recorded as under S.316, signed by the maker, with the Magistrate's certificate (S.183(4)) |
| Use | A confession can be used against the maker; a statement of a witness under S.183(5) is not substantive evidence and is used to corroborate or contradict |
Preventive Action (S.148-172)
Prevention of Cognizable Offences (S.148-150):
| Power | Section | Scope |
|---|---|---|
| Duty to prevent | S.148 | Every police officer shall use best endeavours to prevent commission of cognizable offence |
| Information of design | S.169 | Officer receiving information of design to commit offence shall communicate to superior and take measures |
| Preventive arrest | S.170 | Officer may arrest without warrant to prevent cognizable offence |
Dispersal of Unlawful Assemblies (S.163):
| Step | Detail |
|---|---|
| Command to disperse | Executive Magistrate/police officer commands assembly to disperse |
| Use of civil force | If assembly refuses, force may be used |
| Use of armed force | Only on Magistrate's order; minimum force necessary |
| Protection | Persons acting in good faith under S.163 are protected |
Public Nuisance (S.164-172):
| Power | Section |
|---|---|
| Conditional order for removal | S.164 |
| Service of order | S.165 |
| Inquiry by Magistrate | S.166 |
| Prohibition of repetition | S.167 |
| Urgent cases | S.170: immediate order without notice |
| Injunction pending inquiry | S.171 |
Illustrations
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Think of a murder investigation as building a house: the FIR lays the foundation, the crime scene visit (S.176) provides the blueprint, witness statements (S.180) are the walls, forensic evidence is the plumbing and wiring, and the charge sheet (S.193) is the finished house submitted to the Magistrate for occupancy. If any stage is skipped or botched say the IO doesn't visit the scene or doesn't record witness statements the "house" collapses at trial.
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During investigation of a theft, the IO asks the watchman: "Did you see anyone enter the building at night?" The watchman says "Yes, I saw Gopal." This statement is written down (S.180) but not signed and not on oath. At trial, if the watchman says "I never saw anyone," the prosecution can confront him with his police statement to show he is lying (contradiction under S.181). But the police statement alone cannot convict Gopal it's not evidence by itself. Contrast this with S.183: if Gopal voluntarily confesses before a Magistrate (on record, with safeguards), that can be used as substantive evidence.
Recording Confessions and Statements (S.183): Safeguards
Warning and reflection: Beyond the statutory warning (S.183(2)), the Magistrate must enquire about the custody from which the accused came and his treatment there, give him sufficient time for reflection free from police influence, ask why he wishes to confess, and assure him that he will not be remanded to police custody if he declines (Shivappa v State of Karnataka (1994)).
Video recording: Any S.183 confession or statement may be recorded by audio-video electronic means in the presence of the accused's advocate (S.183(1), first proviso).
Statements of victims of sexual offences (S.183(6)): In offences under S.64-71, 74-79 and 124 BNS, the Magistrate shall record the victim's statement as soon as the offence is brought to the notice of the police; as far as practicable by a woman Magistrate, or by a male Magistrate in the presence of a woman. For disabled persons an interpreter or special educator assists and the statement is video-recorded, preferably by mobile phone; such a statement is treated as examination-in-chief under S.142 BSA, so the maker can be cross-examined without re-recording (S.183(6)(b)).
Forwarding: The record is sent to the Magistrate who will inquire into or try the case (S.183(7)).
Key Cases
State of UP v. Bhagwant Kishore Joshi (1964) State of UP v Bhagwant Kishore Joshi 1964
Issue: Whether an inquiry made by a Sub-Inspector without the Magistrate's permission required by s.5A of the Prevention of Corruption Act 1947 was "investigation", and whether that illegality vitiated the trial.
Rule: An illegality in investigation does not by itself vitiate the trial or the conviction; the accused must show prejudice or a miscarriage of justice (following H.N. Rishbud; s.537 CrPC 1898).
Held: The majority held the inquiry was investigation, so s.5A was breached, but no prejudice was shown and the conviction was restored. Mudholkar J. held that a preliminary enquiry is not investigation. Appeal allowed.
Nandini Satpathy v. P.L. Dani (1978) Nandini Satpathy v PL Dani 1978
Issue: Whether right against self-incrimination (Art.20(3)) extends to police interrogation.
Rule: Art.20(3) protection applies at the stage of police questioning; a person is not bound to answer questions tending to self-incrimination.
Held: The right against self-incrimination operates during investigation. S.180 BNSS requires persons to answer truthfully but exempts answers that expose them to criminal charge. Compulsion to answer incriminating questions during investigation violates Art.20(3).
Shivappa v State of Karnataka (1994) Shivappa v State of Karnataka 1994
Issue: Whether a conviction based solely on a confession recorded under S.164 CrPC (now S.183 BNSS) without adequate safeguards can stand.
Rule: Compliance with S.164 and the High Court rules must be real, not formal. The Magistrate must enquire into custody and treatment, give time for reflection free of police influence, ask the reason for confessing, and assure the accused that he will not be remanded to police custody if he declines.
Held: The confession was unsafe; as it was the only evidence, the conviction was set aside and the appellant released.
Distinctions
| Parameter | Investigation (S.176-196) | Preventive Action (S.148-172) |
|---|---|---|
| Timing | After offence (reactive) | Before offence (proactive) |
| Trigger | FIR or Magistrate order | Information of design or apprehension |
| Objective | Collect evidence, identify offender | Prevent commission of offence |
| Outcome | Charge sheet or closure | Offence averted; no prosecution |
| Judicial oversight | Magistrate via remand, S.193 | Limited (Executive Magistrate for assemblies) |
| Duration | 90/180 days (statutory) | Immediate action required |
Criticism and Debate
- History: S.164 of the 1898 Code and of CrPC 1973 is now S.183 BNSS. Amendments in 2013 and 2018 added the victim statement provisions for sexual offences, and BNSS adds audio-video recording.
- Criticism: Confessions are often recorded after long police custody, so reflection time and enquiry into treatment are vital; Shivappa treats non-compliance as going to the root of the Magistrate's jurisdiction.
- Conclusion: A S.183 confession is valuable only when the safeguards make voluntariness clear.
Exam Scenario
During investigation of a corruption case, the police record the statement of A (a witness) under S.180. At trial, A turns hostile and gives testimony different from the police statement. The prosecution seeks to use A's police statement as substantive evidence. Advise.
Under S.181 BNSS (equivalent to S.162 CrPC), a statement recorded under S.180 by a police officer during investigation cannot be used as substantive evidence. It can only be used: (1) to contradict the witness under S.145 of the Bharatiya Sakshya Adhiniyam (BSA), and (2) for the limited purpose of shaking the witness's credibility. If A turns hostile, the prosecution must: (a) seek court permission to declare A hostile, (b) cross-examine A using the prior statement under S.180 to demonstrate contradiction, and (c) rely on other independent evidence to prove the case. The police statement itself cannot substitute for A's testimony. This rule exists because statements to police are inherently suspect due to the coercive environment and absence of oath.
Met/Not met analysis (S.183 confession): Warning that he is not bound to confess: must be Met. Enquiry about police custody and reflection time (Shivappa): Not met if the accused came straight from police custody and was examined at once. Assurance of no police remand on refusal (S.183(3)): must be Met. Certificate and signature (S.183(4)): must be Met. If the reflection safeguard is not met, the confession is unsafe to act on.
Recall Check
- What is the evidentiary value of a statement recorded by police under S.180?
- Under S.183, what must the Magistrate ensure before recording a confession?
- Name three preventive powers of police under S.148-150.
Flashcards
Under S.180, are police statements recorded on oath?
No. Police cannot administer oath; statements under S.180 are not on oath.
Can a statement under S.180 be used as substantive evidence at trial?
No. It can only be used for contradiction of the witness under S.181 BNSS.
What must a Magistrate ensure under S.183 before recording a confession?
That the confession is voluntary, that the person is informed they are not bound to confess, and that no police officer is present.
What is the police duty under S.148?
Every police officer shall use best endeavours to prevent commission of cognizable offences.
What protection does Art.20(3) provide during investigation per *Nandini Satpathy*?
A person is not bound to answer questions tending to self-incrimination during police interrogation.
What is mandatory videography requirement during investigation?
S.185: search must be videographed; S.176: crime scene visit must be recorded for 7+ year offences.