Background
Central Bureau of Investigation v. Anupam J. Kulkarni (1992) is a landmark Supreme Court judgment interpreting Section 167 of the Code of Criminal Procedure, 1973, particularly the permissible duration of police custody after arrest.
The case became the leading authority on the distinction between:
- police custody;
- judicial custody;
- the first 15 days of remand;
- subsequent detention during investigation.
Core Issue
The principal question was:
Can a Magistrate authorise police custody after the expiry of the first 15 days of remand if the investigation is still continuing?
The Supreme Court answered this in the negative under the CrPC framework.
Supreme Court Ruling
The Court held that, under Section 167 CrPC:
- during the first 15 days after production and remand, the Magistrate may authorise either police custody or judicial custody;
- custody may be changed from judicial to police custody, or vice versa, within this initial 15-day period;
- once the first 15 days expire, further detention in that case can ordinarily be only judicial custody;
- police custody cannot subsequently be granted merely because investigators require further interrogation.
Thus:
First 15 days → Police or judicial custody
After first 15 days → Judicial custody only
This became known as the Anupam Kulkarni rule.
Overall Detention Period
The Court distinguished the 15-day police-custody limit from the longer period during which an accused could remain in judicial custody while investigation continued.
Under the then Section 167 CrPC framework, detention could continue up to the applicable statutory limit of:
- 90 days for specified serious offences;
- 60 days for other offences.
The first 15 days therefore concerned the permissible nature of custody, not the entire investigation period.
Different Case Exception
The Court made an important qualification.
If the same person is subsequently arrested in connection with a different case arising from a different transaction, a fresh remand period may arise in that separate case.
Therefore, expiry of the first 15 days in Case A does not necessarily prevent police custody in Case B if:
- Case B is genuinely distinct;
- it concerns a different transaction; and
- lawful arrest and remand occur independently in that case.
However, merely discovering additional offences arising from the same transaction does not restart the police-custody clock.
Rationale
The Court treated Section 167 as supplementary to the rule that police cannot ordinarily detain an arrested person beyond 24 hours without judicial authorisation.
The remand framework was designed to balance:
- investigative necessity;
- judicial supervision;
- protection against prolonged police custody;
- personal liberty.
Police custody was therefore treated as a more restrictive form of detention requiring tighter temporal limits and closer judicial scrutiny.
Importance
The judgment became the controlling precedent for decades on remand under Section 167 CrPC.
Its key contributions were:
- limiting police custody to the initial 15-day period;
- distinguishing police from judicial custody;
- preventing repeated police-remand applications after the initial period;
- preserving judicial control over continued detention;
- clarifying treatment of separate criminal cases.
Later Supreme Court decisions repeatedly relied on this principle.
Position under BNSS, 2023
The importance of Anupam Kulkarni has changed after the enactment of the Bharatiya Nagarik Suraksha Sanhita, 2023.
Under Section 187 BNSS, the aggregate maximum police custody remains 15 days, but those 15 days may be authorised in parts within:
- the initial 40 days where the total investigation detention limit is 60 days; or
- the initial 60 days where the total limit is 90 days.
Therefore, the strict rule in Anupam Kulkarni that police custody must necessarily occur only within the first 15 consecutive days has been legislatively altered for cases governed by the BNSS.
The distinction is crucial:
CrPC / Anupam Kulkarni → police custody confined to first 15 days
BNSS Section 187 → total police custody still 15 days, but distributable within the prescribed initial 40/60-day window
Conclusion
CBI v. Anupam J. Kulkarni established the classic CrPC rule that police custody could be authorised only during the first 15 days of remand, while subsequent detention had to be judicial. Its principle governed remand law for decades, but Section 187 BNSS has now modified this rule by permitting the 15 days of police custody to be split across a wider initial period of investigation.
