Introduction

Article 20 of the Constitution of India protects individuals accused of crimes, including citizens, non-citizens, and corporations. These rights cannot be suspended, even during emergencies, and act as a limit on legislative powers.

Meaning / Definition

• Rights of the Accused: Legal protections to prevent arbitrary conviction, repeated prosecution, and forced self-incrimination.
• Scope: Applies to conviction for offences and ensures fair treatment of accused persons by the State.

Modes or Types

Ex-Post Facto Law (Art. 20(1))

• No person can be convicted for an act that was not an offence at the time it was committed.
• No penalty greater than what was prescribed at the time of the offence.
• Retrospective criminal laws are prohibited.
• Beneficial changes in law (e.g., reduced punishment) may be applied to the accused.

Double Jeopardy (Art. 20(2))

• No person shall be prosecuted and punished more than once for the same offence.
• Embodies the principle nemo debet bis vexari (no person should be put twice in peril for the same offence).
• Covers autrefois convict (previous conviction) but not autrefois acquit (previous acquittal).
• Protection applies only to court proceedings, not administrative or departmental actions.

Protection Against Self-Incrimination (Art. 20(3))

• No accused can be compelled to be a witness against themselves.
• Extends to statements made during police investigations, not only in court.
• Applies to natural persons as well as corporations.
• Based on the maxim nemo tenetur prodere seipsum (no one is bound to accuse themselves).

Important Case Law

Transmission Corpn., A.P. v Ch. Prabhakar

• Question referred to larger bench on whether Art. 20(1) prohibits laws aggravating crime or punishment.

Ratan Lal v State of Punjab (AIR 1965 SC 444)

• Beneficial ex-post facto law (Probation of Offenders Act) applied to reduce imprisonment for a minor.

Maqbool Hussain v State of Bombay (AIR 1953 SC 325)

• Protection under Art. 20(2) does not extend to proceedings before non-judicial authorities.

S.A. Venkataraman v UOI (AIR 1954 SC 375)

• Disciplinary proceedings against government servants do not bar prosecution for criminal offence.

M.R. Sharma v Satish Chandra (AIR 1954 SC 300)

• Protection against self-incrimination applies only to accused persons, not other witnesses.

Nandini Sathpathy v P.L. Dani (AIR 1978 SC 1025)

• Right against self-incrimination extends to police investigation stage, not just court trial.

Aloke Nath Dutta v State of W.B. (2007) 12 SCC 230

• Retracted confessions must be considered in light of the right to remain silent and human rights under Art. 21.

Practical Example

If a person is accused of a theft that was not an offence when committed, they cannot be punished under a new law made later. Similarly, a person cannot be forced to confess or provide evidence against themselves during police investigation.

Summary

• Art. 20 protects accused persons from ex-post facto laws, double jeopardy, and forced self-incrimination.
• Ex-post facto laws: No conviction or higher penalty for acts not criminal at the time of commission.
• Double jeopardy: No prosecution and punishment more than once for the same offence (autrefois convict only).
• Self-incrimination: Accused cannot be compelled to testify against themselves, including during investigation.
• Protections apply to judicial proceedings; administrative or departmental actions are outside its scope.
• Beneficial changes in law reducing punishment can be applied retrospectively.
• These safeguards ensure fair trial, prevent harassment, and uphold human rights of the accused.