Thursday, 3 July 2025

Shifting the Paradigm: How BNSS 2023 Transforms Criminal Procedure for Accused Persons of Unsound Mind

 The Bharatiya Nagarik Suraksha Sanhita (BNSS) 2023 replaces select portions of the Code of Criminal Procedure (CrPC) 1973 and, in doing so, rewrites India’s response to accused persons whose mental condition prevents them from mounting a defence. The reform moves beyond outdated language and narrow categories, extends wider substantive protection, and tightens procedural safeguards.

1. Structural Re-location of the Law

CrPC housed the rules in Chapter XXV, Sections 328 – 339. BNSS mirrors this structure in Chapter XXVII, Sections 367 – 378, ensuring continuity for practitioners while signalling a fresh policy outlook.

2. Terminology: From Stigma to Dignity

CrPC still used “lunatic” and “mental retardation,” expressions laden with stigma. BNSS abandons them for “person of unsound mind,” “mental illness,” and “intellectual disability,” language that aligns with the Rights of Persons with Disabilities Act 2016 and contemporary psychiatry.

3. The Core Substantive Shift: Expanded Diagnostic Net

By substituting “mental retardation” with “intellectual disability,” BNSS widens the gateway to include conditions such as autism spectrum disorder, specific learning disabilities and degenerative dementias like Alzheimer’s. The Kerala High Court in V.I. Thankappan v. State of Kerala confirmed that this broader definition applies even to cases filed before BNSS came into force, to avoid violating constitutional guarantees of equality and fair trial.

4. Key Procedural Innovations

4.1 Medical Assessment

Both statutes still require an initial medical opinion from a civil surgeon and referral to a psychiatrist or clinical psychologist (CrPC s.328; BNSS s.367). The right of appeal to a Medical Board is retained, preserving procedural fairness.

4.2 Release Pending Trial

Section 330 CrPC allowed conditional bail for non-violent offenders found incapable of defence. BNSS s.369 now lets courts grant bail in all cases—bailable or otherwise—so long as in-patient care is unnecessary and a relative undertakes to secure out-patient treatment.

4.3 Treatment Standards

Detention or care under BNSS must comply with the Mental Healthcare Act 2017, a statute that did not exist when the CrPC provisions were drafted, thereby modernising safeguards for involuntary treatment.

4.4 Discharge Decisions

Where CrPC spoke only of “mental retardation,” BNSS empowers courts to order discharge whenever any intellectual disability renders a fair trial impossible, subject to medical advice and public-safety undertakings.

5. Comparative Snapshot

AspectCrPC 1973BNSS 2023
Governing chapter & sectionsCh. XXV, 328 – 339Ch. XXVII, 367 – 378
Core terminology“Unsound mind” + “mental retardation”“Unsound mind,” “mental illness,” “intellectual disability”
Conditions coveredNarrow focus on mental retardationBroader intellectual disabilities (e.g., autism, dementia)
Bail while incapable of defencePossible but limited under s.330Mandatory consideration in all cases under s.369; outpatient-care undertaking
Statutory treatment frameworkMental Health Act 1987 referenceMental Healthcare Act 2017 compliance
Retrospective applicationNot addressedApplied retrospectively by Kerala HC in Thankappan

6. Practical Implications

Legal practitioners must now evaluate accused persons under the wider umbrella of intellectual disability, not just unsoundness of mind or mental retardation. Bail applications have stronger footing, psychiatric care orders must meet 2017-Act standards, and pending CrPC matters can invoke BNSS safeguards to satisfy Article 21’s fair-trial requirement.

7. Conclusion

BNSS 2023 marks a decisive move from a purely medical-custodial model toward a rights-based, bio-psychosocial framework. By modernising language, enlarging substantive protection, and tightening procedural fairness, the Sanhita offers a more humane and constitutionally robust response to accused persons whose mental condition impedes their defence—fulfilling both public-safety and human-dignity imperatives.

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