Nandini Satpathy v. P.L. Dani

In this constitutional milestone authored by Justice V.R. Krishna Iyer, the Supreme Court dramatically expanded the fundamental right against self-incrimination guaranteed by Article 20(3) of the Constitution and the statutory protection under Section 161(2) CrPC (now Section 180(2) BNSS, 2023). The Court held that the constitutional right to silence applies with full vigor during police interrogation and investigation, extending not only to persons formally charged in an FIR but to any person or witness summoned for questioning. An accused has the absolute right to refuse answering questions whose answers have a tendency to incriminate them, and can have an advocate present within sight during custodial questioning.

• Article 20(3) Extends to Police Interrogation: The right against self-incrimination operates at the threshold of police questioning, not merely during trial.
• Tendency to Incriminate Standard: The privilege covers not only direct confessions but any answer that could form a link in the chain of prosecution evidence.
• Right to Counsel During Questioning: Suspects have the right to have an advocate present within viewing distance (though outside hearing distance) during police interrogation.
• Prohibition of Coercive Questioning: Physical brutality, psychic torture, atmospheric pressure, and threats of Section 179 IPC prosecution violate Article 20(3).
• Strict Enforcement of Section 160 CrPC Proviso: Police cannot summon women, minors under 15, or senior citizens to a police station; interrogation must occur at their residence.

The appellant, Nandini Satpathy, a former Chief Minister of Orissa, was investigated by the Vigilance Police for offences under the Prevention of Corruption Act and Section 165 IPC following a political change of regime.

The Deputy Superintendent of Police (Vigilance) served a notice under Section 160(1) CrPC requiring her appearance at the Vigilance Police Station, Cuttack, and handed her an exhaustive questionnaire containing dozens of probing questions regarding her finances.

Satpathy attended but refused to answer the questions, invoking her constitutional right against self-incrimination under Article 20(3) and Section 161(2) CrPC.

The investigating officer lodged a criminal complaint against her under Section 179 IPC (refusing to answer a public servant legally authorized to question) before the Magistrate, who took cognizance and issued process.

Satpathy challenged the prosecution before the High Court of Orissa, which dismissed her petition. She then appealed to the Supreme Court.

The prohibitive sweep of Article 20(3) goes back to the stage of police interrogation — not, as under English law, to the trial alone. The right to silence belongs to any person questioned by the police who has a reasonable apprehension that his answer will expose him to a criminal charge. The words 'any person' in Section 161(1) CrPC include an accused person as well as a suspect. A person accused of an offence may not be compelled to be a witness against himself. Compulsion is not confined to physical brutality; psychic pressure, continuous grilling, atmospheric coercion, and threats of prosecution for refusing to answer under Section 179 IPC violate the constitutional immunity under Article 20(3). Section 161(2) CrPC is a statutory cousin of Article 20(3). If the answer has a tendency to incriminate the witness, he has the lawful right to say: 'I refuse to answer, for it may incriminate me.' Such silence cannot be penalized under Section 179 IPC. To protect the interrogated person from coerced confessions and third-degree interrogation, the suspect has the right to have an advocate present within sight, though outside hearing distance, so as not to interrupt the legitimate course of police questioning.

• Selvi v. State of Karnataka (2010) 7 SCC 263: Extended Nandini Satpathy to ban involuntary narco-analysis, polygraph, and brain-mapping under Article 20(3).
• D.K. Basu v. State of West Bengal (1997) 1 SCC 416: Incorporated the right to meet with legal counsel during interrogation.
• Prabir Purkayastha v. State (NCT of Delhi) (2024) 8 SCC 117: Cited regarding the absolute sanctity of legal representation during investigative arrest.