Applying New Criminal Laws to Pre-July 2024 Offences: Transitional and Substantive Norms

Applicable Law for Offences Committed Before July 2, 2024

India's criminal justice system underwent a major overhaul with the introduction of new laws—the Bharatiya Nyaya Sanhita (BNS), Bharatiya Nagarik Suraksha Sanhita (BNSS), and Bharatiya Sakshya Adhiniyam (BSA)—effective from July 1, 2024. This shift replaced the Indian Penal Code (IPC), Code of Criminal Procedure (CrPC), and Indian Evidence Act. A common query arises: Which Provision will Applicable if the Offence is Committed Prior to 02 07 2024?

If your case involves an offence from before this date, especially one spanning into the new regime like from October 2023 to August 2025, understanding substantive versus procedural law is crucial. This post breaks it down, drawing from legal analyses and precedents to guide you generally on applicability.

Core Principle: Substantive Law at Time of Offence

The foundational rule is that substantive criminal law—defining the offence and punishment—applies based on the law in force at the time of commission2025 0 Supreme(Ker) 1097. Article 20(1) of the Constitution prohibits ex post facto convictions: The prohibition under Article 20(1) is that no person shall be convicted of any offence except for violation of a law in force at the time of the commission of the act charged as an offence... 2025 0 Supreme(Ker) 1097.

For an offence in October 2023, IPC governs the substantive aspects.
Acts after July 1, 2024, fall under BNS, unless transitional rules specify otherwise.

This holds even for continuous offences like money laundering, where liability spans periods but ties to the initial act's law unless explicitly retrospective 2025 0 Supreme(Ker) 1097 2010 3 Supreme 494.

Procedural Law: Guided by Transitional Provisions

Procedural law (investigation, trial, appeals) often applies retrospectively, per savings clauses in new laws 2024 0 Supreme(Gau) 1072 2023 0 Supreme(All) 1540 2024 0 Supreme(P&H) 544. Key scenarios:

FIR registered on/after July 1, 2024, for pre-2024 offence: FIR under IPC, but investigation under BNSS 2024 0 Supreme(Gau) 1072.
Pending investigation on July 1, 2024: Continues under CrPC until cognizance on police report 2024 0 Supreme(Gau) 1072 2024 0 Supreme(P&H) 544.

Courts affirm procedural laws are retrospective unless stated otherwise, but they don't alter accrued substantive rights 2022 0 Supreme(Telangana) 396. In a Prevention of Corruption Act case, amended sanction requirements didn't apply retrospectively to pre-amendment offences, as they imposed new obligations 2022 0 Supreme(Telangana) 396. Similarly, for SC/ST Act offences pre-amendment, prior provisions governed 2019 0 Supreme(Guj) 205.

Handling Continuous or Spanning Offences

For offences from October 2023 to August 2025:

Pre-July 2024 acts: Old substantive law (IPC).
Post-July 2024 acts: New substantive law (BNS).
Procedural stages: Follow transitional rules—e.g., ongoing probes under old law until specified milestones 2024 0 Supreme(Gau) 1072.

Continuous offences treat the continuum as one, governed by the law at initiation, but courts dissect for changes 2025 0 Supreme(Ker) 1097.

Insights from Related Precedents

Procedural shifts don't override substantive protections. In POCSO cases, once a victim turns 18, child-specific procedures (e.g., Section 33(2)) cease, shifting to general CrPC norms, as protections are tied to 'child' status at relevant times

Jasaram Pander VS State of Rajasthan

. This underscores procedural flexibility post-status change.

In seizure matters, powers under old CrPC Section 102 require crime linkage at seizure time; mere suspicion fails 2024 0 Supreme(Telangana) 1031. For bank guarantees or civil executions, procedural compliance like CPC Section 44A enables parallel enforcement without retrospectivity issues 2025 Supreme(Online)(Del) 6917.

These reinforce: Substantive law locks at commission; procedures adapt via transitions 2024 0 Supreme(Gau) 1072 2023 0 Supreme(All) 1540.

Exceptions and Judicial Guidance

Substantive law rarely retrospective without explicit statement.
Procedural laws presumed retrospective, but savings clauses protect ongoing matters 2024 0 Supreme(P&H) 544.
Special laws prevail over general (e.g., Minor Minerals Rules vs IPC Section 379)
Ashish Singh VS State of M. P.
.

Courts urge examining specific clauses: Procedural laws generally have retrospective operation unless explicitly stated otherwise 2024 0 Supreme(Gau) 1072.

Practical Recommendations

Pinpoint offence dates/acts.
Check FIR date and proceeding stage.
Review new laws' schedules for transitions.
Consult counsel for case-specifics, as courts interpret nuances.

Key Takeaways

| Aspect | Pre-July 2024 Offence | Spanning Offences ||--------|-----------------------|-------------------|| Substantive | IPC in force then 2025 0 Supreme(Ker) 1097 | Per act's date || Procedural | Transitional (e.g., BNSS post-FIR) 2024 0 Supreme(Gau) 1072 | Stage-dependent || Continuous | Initial law primary 2025 0 Supreme(Ker) 1097 | Dissect if needed |

In summary, pre-July 2, 2024 offences generally follow IPC substantively, with BNSS procedures via transitions 2024 0 Supreme(Gau) 1072. This balances continuity and reform.

Disclaimer: This is general information based on analyses 2024 0 Supreme(Gau) 1072 2025 0 Supreme(Ker) 1097 2023 0 Supreme(All) 1540 2024 0 Supreme(P&H) 544; not legal advice. Seek professional guidance.