Constitutional Protection Against Unreasonable Search | BNSS

Constitutional Protection Against Unreasonable Search: Article 20(3), Article 21, Privacy and the Absence of an Exclusionary Rule in India

The Indian Constitution contains no provision corresponding to the Fourth Amendment to the Constitution of the United States. There is no guarantee against unreasonable searches and seizures in terms, no requirement that a warrant issue only on probable cause, and no rule that evidence obtained in breach of a constitutional protection must be excluded. The Supreme Court said so in 1954, and the position has never been departed from.

What India has instead is a set of protections assembled from three sources. Article 20(3) forbids compelling an accused person to be a witness against himself, and it bars one investigative process while leaving another untouched. Article 21, as construed since 2017, protects privacy including the sanctity of the home and informational privacy, and subjects every invasion of it to a test of proportionality. And the statutory safeguards in Chapter VII of the Bharatiya Nagarik Suraksha Sanhita, 2023 supply the detail by which the constitutional standard is satisfied in practice. This topic sets out how the three fit together.

1. Article 20(3): the Three Elements

Figure 1: The three elements of the protection

Article 20(3), Constitution of India

No person accused of any offence shall be compelled to be a witness against himself.

All three elements must be present, and each has been construed. The clause does not protect everyone, does not bar every requirement made of an accused, and does not cover everything that might assist the prosecution.

1.1 Accused of an offence

The protection belongs to a person against whom a formal accusation has been made which may in the ordinary course result in a prosecution. It operates at the investigation stage and not merely at the trial, so a person named in a first information report and questioned by the police is within it. It does not protect a mere witness, a third party summoned to produce a document, or a person questioned in a proceeding that is not criminal. That is why section 94 of the Sanhita may be used against a bank, an employer or a stranger, and may not be used against the accused.

1.2 Compelled

Compulsion means duress. The mere fact that a person is in police custody when he makes a statement does not, without more, establish compulsion, though it is a circumstance the court weighs. The compulsion may be legal as well as physical: an order of a court backed by a penalty for disobedience is compulsion just as a beating is. And the involuntary administration of a technique that extracts what a person knows is compulsion, whatever it is called and however painless it may be.

1.3 To be a witness against himself

“To be a witness” means to impart knowledge in respect of relevant facts, by an oral or written statement. The protection covers not only a confession but any answer that would furnish a link in the chain of evidence against the person, and any answer tending to expose him to a penalty or forfeiture. It does not cover the mere mechanical process of producing a specimen for comparison, because a fingerprint, a specimen of handwriting, a voice sample, a blood sample or a DNA profile conveys nothing within the personal knowledge of the person from whom it is taken.

Within Article 20(3)	Outside Article 20(3)
A confession or an admission by the accused	Fingerprints, palm and foot impressions
An answer furnishing a link in the chain of evidence	Specimen handwriting and signatures
An answer exposing him to a penalty or forfeiture	Voice samples ordered under section 349
The results of narco-analysis, polygraph examination and brain mapping administered involuntarily	Blood, swabs, hair and nail clippings taken under section 51, and DNA profiling
A summons to the accused under section 94 requiring him to produce a document	A search warrant under section 96 for premises occupied by the accused
Anything requiring the accused to exercise his volition to furnish material	Anything the State does without requiring him to act

2. Search and Article 20(3)

Whether a search of premises offends Article 20(3) was among the earliest questions the Supreme Court decided, and it was decided by a Bench of eight Judges.

📖 M.P. Sharma v. Satish Chandra, AIR 1954 SC 300 (Bench of eight Judges)

Facts: Search warrants were issued under the Code of Criminal Procedure and simultaneous searches were conducted at a large number of premises connected with a company under investigation for offences of fraud, and voluminous documents were seized. The petitioners challenged the searches on two grounds: that compelling the production of documents by a search and seizure amounted to compelling the accused to be a witness against himself contrary to Article 20(3); and that the Constitution contains an implied protection against unreasonable searches comparable to that in other constitutions.

Held: The Court rejected both contentions. On the first, it held that a search and seizure is not compelled production: the search is carried out by the officer, and the person whose premises are searched is not required to do anything, so there is no element of compulsion on him to be a witness. On the second, it held that the Constitution contains no provision corresponding to the Fourth Amendment of the United States Constitution, and that the Court would be unjustified in importing into a totally different fundamental right a limitation the Constitution had not expressed. The power of search and seizure is an overriding power of the State for the protection of social security, and that power is regulated by law.

Ratio: A search does not offend Article 20(3), because it compels the person to do nothing. The Constitution contains no express guarantee against unreasonable search, and the protection of the individual lies in the law that regulates the power.

⚠ What survives of M.P. Sharma, and what does not

The first holding survives entirely. A search compels the person to do nothing and therefore does not offend Article 20(3). That proposition has been applied ever since, and it is the reason a search warrant is available against an accused where a summons to produce is not.

The second holding has been qualified. M.P. Sharma also observed that the Constitution does not recognise a fundamental right to privacy. That observation was expressly overruled in 2017 by a Bench of nine Judges, which held that privacy is protected as an intrinsic part of the right to life and personal liberty under Article 21.

The consequence is that a search is today tested not by Article 20(3), which it does not engage, but by Article 21 and the requirement of proportionality. The absence of a Fourth Amendment remains true; the absence of any constitutional standard does not.

3. The Constitutional Framework Today

Figure 2: How the framework was built

Since 2017 the framework has three requirements, and every search must satisfy all three.

There must be a law. An executive instruction, a departmental circular or an administrative practice will not do. The Sanhita supplies the law: sections 96 to 101 authorise the several kinds of search warrant, sections 185 and 186 authorise a search by a police officer during an investigation, and the special statutes supply their own powers.
The law must pursue a legitimate State aim. The prevention, detection and investigation of crime is a legitimate aim, and this requirement is rarely contested.
The means must be proportionate to the object. This is the requirement on which cases are decided. A search that goes further than the object requires, a warrant that authorises a search at large where the material sought could have been identified, or a seizure that gives the State access to far more than the investigation needs, is vulnerable on this ground even though the section authorises it.

The statutory safeguards are best understood as the means by which the third requirement is satisfied. Section 96(2) permits a court to confine a warrant to a particular place or part; section 103 requires independent witnesses, a list of what was seized and where it was found, the occupant’s presence, and a copy of the list to him; and section 105 requires the search and seizure to be recorded by audio-video electronic means and the recording forwarded to a Magistrate. A search conducted in compliance with those provisions is far easier to defend as proportionate than one that was not.

3.1 The problem of the digital device

The proportionality question is sharpest, and least settled, in relation to digital devices. Section 94 of the Sanhita now expressly reaches electronic communication, including communication devices, which is likely to contain digital evidence, and section 185 permits a police officer to search for anything necessary for the purposes of an investigation.

⚠ Three questions the Sanhita does not answer

Scope. A phone or a laptop contains the whole of a person’s private life: messages, photographs, financial records, medical information, location history and the communications of everyone he has spoken to. Whether the seizure of such a device in an investigation into a particular offence is proportionate to that investigation, and whether the examination of its entire contents is, are different questions, and the Sanhita addresses neither.

Third parties. The contents of a device include the communications of persons who are not suspected of anything. Their privacy is invaded by the examination, and they have no notice of it and no opportunity to object.

Duration and return. The Sanhita contains no provision limiting how long a seized device may be retained, requiring the deletion of irrelevant material, or providing for the return of a copy to the owner. The general provisions on the disposal of property apply, and they were not written with this problem in view.

The honest position is that the statutory framework was drafted for physical searches and has been extended to digital ones by the addition of words, and that the working out of the proportionality requirement in this field is being done by the courts rather than by the statute.

4. The Absence of an Exclusionary Rule

The most consequential feature of Indian law in this area is negative. There is no rule that evidence obtained in breach of a statutory or constitutional protection must be excluded from the trial. The point was settled by a Constitution Bench.

📖 Pooran Mal v. Director of Inspection (Investigation), (1974) 1 SCC 345 (Constitution Bench)

Facts: Searches were carried out under the Income-tax Act and material was seized. The petitioners contended that the searches were illegal, that the seized material could not be used against them in any proceeding, and that to permit its use would violate Articles 19 and 31 and would be inconsistent with the guarantee in Article 20(3).

Held: The Court held that even assuming the search to be illegal, the material seized is not inadmissible. Neither the Constitution nor the Evidence Act contains any provision excluding relevant evidence on the ground that it was obtained by an illegal search; the test of admissibility in India is relevance, and the common law rule, which admits relevant evidence however obtained, applies. The Court observed that unless there is an express or necessarily implied constitutional or statutory bar, the court will not exclude relevant material; and that the remedy for an illegal search lies elsewhere, in proceedings against those who conducted it. It added that where the search is shown to have been illegal, the court will scrutinise the evidence with care, but that is a question of weight and not of admissibility.

Ratio: Indian law knows no general exclusionary rule. Evidence obtained by an illegal search is admissible if it is relevant, and the illegality goes to the weight the court attaches to it and to the liability of those who conducted the search.

The question	The Indian answer
Is evidence obtained in an illegal search inadmissible?	No. The test of admissibility is relevance: Pooran Mal
Does an illegal search vitiate the trial?	No. Chapter XXXVII governs, and section 511 makes failure of justice the test
Does an illegal search entitle the accused to an acquittal?	No. The evidence is assessed on its merits; what follows is caution in weighing it
What then is the consequence of an illegal search?	The court scrutinises the evidence of the recovery with greater care; the prosecution has no answer to a suggestion that the recovery was not what it is said to be; and the officer is liable to departmental action and, in an appropriate case, to prosecution and to a claim in compensation
Is there any statutory exclusion at all?	Yes, but specific and narrow: the law of evidence excludes a confession to a police officer and a confession in police custody made otherwise than before a Magistrate. That is an exclusion of a class of statement, not of unlawfully obtained evidence generally
Why do the safeguards matter, then?	Because their observance is what makes the evidence credible, and their breach is what makes it contestable. The safeguards operate evidentially rather than by exclusion, and section 105 strengthens them considerably by supplying a contemporaneous record

5. The Position in Summary

Question	Position
Is there a constitutional guarantee against unreasonable search?	Not in terms. There is no provision corresponding to the Fourth Amendment: M.P. Sharma. The protection comes from Article 21 read with the proportionality requirement, and from the statute
Does a search violate Article 20(3)?	No. The person is not compelled to do anything and imparts no knowledge: M.P. Sharma, applied in V.S. Kuttan Pillai
Does a summons to the accused to produce a document violate it?	Yes in substance, and the Supreme Court has held that section 94 does not apply to an accused person at all
Does compelling a specimen violate it?	No. A specimen for comparison is not testimony: the settled position since Kathi Kalu Oghad
Does compelling narco-analysis or a polygraph violate it?	Yes, where administered involuntarily; and it also violates Article 21: Selvi
Is privacy a fundamental right?	Yes, under Article 21, including the sanctity of the home and informational privacy: Puttaswamy, which overruled the contrary observation in M.P. Sharma
What test applies to a search today?	Legality, legitimate aim and proportionality
Is unlawfully obtained evidence excluded?	No. Relevance is the test: Pooran Mal

6. Key Takeaways

The position stated shortly

1. Article 20(3) has three elements, all of which must be present: the person must be accused of an offence, he must be compelled, and what is compelled must amount to being a witness against himself.

2. The protection operates at the investigation stage and not only at trial, and covers any answer furnishing a link in the chain of evidence.

3. It does not cover a specimen taken for comparison, because such material conveys no personal knowledge; it does cover the involuntary administration of techniques that extract what a person knows.

4. A search does not offend Article 20(3), because the person is required to do nothing and imparts no knowledge: M.P. Sharma.

5. The Constitution contains no provision corresponding to the Fourth Amendment, and the Court has declined to import one.

6. The observation in M.P. Sharma that there is no fundamental right to privacy was overruled in 2017. Privacy is protected by Article 21 and includes the sanctity of the home and informational privacy.

7. A search is therefore tested today by a threefold requirement: a law, a legitimate State aim, and proportionality. The statutory safeguards are the means by which proportionality is satisfied.

8. Indian law knows no general exclusionary rule. Evidence obtained in an illegal search is admissible if relevant: Pooran Mal.

9. The consequence of an illegal search is therefore evidentiary and personal: the court scrutinises the recovery with greater care, and the officer is exposed to departmental action, prosecution and a claim in compensation.

10. The proportionality requirement is least settled in relation to digital devices, where the statute reaches a device likely to contain digital evidence but says nothing about the scope of examination, the position of third parties, or retention and return.

7. Frequently Asked Questions

Does the Indian Constitution protect against unreasonable searches?

Not by an express provision. The Supreme Court held in M.P. Sharma that the Constitution contains nothing corresponding to the Fourth Amendment of the United States Constitution. The protection today comes from Article 21, under which privacy is a fundamental right and an invasion of it must be authorised by law, pursue a legitimate aim and be proportionate, and from the statutory safeguards in the Sanhita.

Does a search of an accused person’s house violate Article 20(3)?

No. A search compels him to do nothing; the officer acts and the accused is a passive observer. He is therefore not compelled to be a witness against himself, and the guarantee is not engaged: M.P. Sharma, applied in V.S. Kuttan Pillai.

Can an accused be ordered to produce a document?

No. The Supreme Court has held that section 94 of the Sanhita does not apply to an accused person, because an order to produce requires him to search out and hand over material against himself. The prosecution’s remedy is a search warrant.

Is evidence found in an illegal search inadmissible in India?

No. The Constitution Bench held in Pooran Mal that neither the Constitution nor the law of evidence excludes relevant material on the ground that it was obtained by an illegal search. The test of admissibility is relevance, and the illegality goes to the weight the court gives the evidence.

What is the proportionality test for a search?

That there must be a law authorising the invasion, the restriction must pursue a legitimate State aim, and the means adopted must be proportionate to the object sought to be achieved. It follows from the holding in Puttaswamy that privacy is protected by Article 21.

Can the police seize and examine a mobile phone?

Section 94 expressly reaches electronic communication and communication devices likely to contain digital evidence, and the search powers during an investigation extend to them. Whether the seizure and the examination of the whole contents of such a device is proportionate to a particular investigation is a question the Sanhita does not answer and which the courts are working out.

Related Topics

Search Warrant and Summons to Produce Compared
Production of Documents and Search: Sections 94 to 110, BNSS
Rights of an Arrested Person under the BNSS, 2023
Medical Examination under the BNSS, 2023: Sections 51, 52 and 53
Electronic Communication under the BNSS, 2023
Criminal Procedure: Meaning, Nature, Objects and Importance