Section 468 – Period of Detention Undergone by Accused to Be Set Off Against Sentence of Imprisonment

Introduction

Section 468 of the Bharatiya Nagarik Suraksha Sanhita, 2023 (BNSS) deals with the set-off of the period of detention already undergone by an accused against the sentence of imprisonment imposed upon conviction.

The provision ensures that a person is not required to undergo imprisonment twice for the same period merely because they were detained during the investigation, inquiry or trial.

In simple terms:

Detention before conviction → Conviction and imprisonment → Previous detention is counted toward the sentence

Meaning of Section 468

Section 468 provides that where a person has been sentenced to imprisonment for an offence, the period of detention already undergone by that person during the investigation, inquiry or trial of the same case shall be set off against the term of imprisonment imposed upon conviction.

This means that the period spent in custody before conviction is generally credited towards the sentence of imprisonment.

Example

Suppose a person is detained for 8 months during investigation and trial.

After trial, the person is sentenced to 3 years’ imprisonment.

The 8 months already spent in detention will be set off against the 3-year sentence.

Therefore, subject to the statutory conditions, the remaining period would be:

3 years − 8 months = 2 years 4 months

Purpose of Section 468

The primary purpose of Section 468 is to prevent double deprivation of liberty.

A person may spend a considerable period in custody before the trial is concluded. If that period were completely ignored after conviction, the person could effectively undergo imprisonment for a period longer than the sentence imposed by the court.

The provision therefore promotes:

• fairness in sentencing;
• proper calculation of imprisonment;
• prevention of excessive incarceration;
• recognition of pre-trial detention; and
• consistency in execution of sentences.

What Period Is Taken Into Account?

The provision concerns the period of detention undergone by the accused during:

• investigation;
• inquiry; or
• trial.

The detention must relate to the same case for which the sentence of imprisonment has subsequently been imposed.

This connection is important.

Set-Off Against Imprisonment

The central rule is that the period of detention is set off against the term of imprisonment imposed on conviction.

For example:

Pre-trial detention: 1 year

Sentence: 5 years’ imprisonment

Set-off: 1 year

Balance: 4 years

The period already spent in custody is therefore taken into account while calculating the imprisonment remaining to be served.

Section 468 and the Principle of Fairness

The provision reflects a basic principle of criminal justice: a person should receive credit for the period during which their liberty was already restricted in connection with the same criminal case.

It prevents the pre-trial detention period from becoming legally irrelevant once the person is convicted.

Section 468 Applies to the Same Case

An important requirement is that the detention must have been undergone in connection with the same case in which the imprisonment sentence is imposed.

Example

A person spends 6 months in custody in Case A.

The person is subsequently sentenced to 3 years’ imprisonment in Case A.

The 6 months may be set off against the 3-year sentence.

However, detention relating to a completely different case cannot simply be credited against the sentence in Case A merely because the person happened to be in custody during that period.

Section 468 and Acquittal

The set-off provision becomes relevant where the accused is convicted and sentenced to imprisonment.

If the accused is acquitted, there is no imprisonment sentence against which the period can be set off.

The consequences of wrongful or prolonged detention following acquittal may involve other legal principles, but that is distinct from the statutory set-off mechanism under Section 468.

Section 468 and Imprisonment for Life

Section 468 specifically concerns set-off against a term of imprisonment.

Life imprisonment is legally distinct from imprisonment for a fixed term.

Therefore, the provision should not be understood as automatically converting periods of pre-trial detention into a fixed reduction of a life sentence.

The legal treatment of life imprisonment is governed by the applicable provisions and judicial interpretation.

Section 468 and Fine

Section 468 deals with imprisonment.

A period of detention is not simply converted into a credit against a fine imposed by the court.

The provision is concerned with setting off detention against the imprisonment component of the sentence.

Section 468 and Multiple Sentences

Where a person has been convicted in more than one case, the calculation of set-off may depend upon the relationship between the sentences and the applicable provisions governing their execution.

Section 468 should therefore be read together with provisions dealing with multiple sentences, including Section 467 concerning an offender already sentenced for another offence.

Section 468 and Section 467

The two provisions address different issues.

Section 467

Deals with the relationship between a previous sentence and a subsequent sentence.

It determines whether the subsequent sentence operates consecutively or concurrently.

Section 468

Deals with the period of detention before conviction.

It provides for credit of that period against the imprisonment sentence imposed in the same case.

In short:

Section 467 → Multiple sentences

Section 468 → Pre-conviction detention set-off

Section 468 and Bail

A person who remains on bail generally does not spend that period in detention.

Therefore, the set-off principle concerns the period actually undergone in custody, rather than the entire period between arrest and final judgment.

For example:

Arrest → 3 months in custody → Bail → Trial continues

Generally, the relevant detention period for set-off is the 3 months actually spent in custody, not the entire duration of the trial.

Example – Detailed Calculation

Suppose an accused is arrested on 1 January.

The accused remains in custody until 1 September, when bail is granted.

The trial continues for another year.

The accused is eventually convicted and sentenced to 4 years’ imprisonment.

The period from January to September spent in detention is credited against the sentence according to the applicable calculation.

The period spent on bail is not treated as detention merely because the trial was still pending.

Importance in Sentencing

Section 468 is particularly significant in cases where trials take a substantial amount of time.

Criminal proceedings may sometimes involve prolonged investigation, inquiry and trial.

If the accused remains in custody during that period, the statutory set-off ensures that such detention is recognised when the final imprisonment sentence is executed.

Effect of Set-Off

Set-off does not mean that the conviction disappears.

It does not reduce the sentence imposed by the court in the judgment itself.

Instead, it affects the amount of imprisonment remaining to be served after taking the previous detention into account.

For example:

Sentence imposed: 5 years

Pre-trial detention: 10 months

Effective remaining period: 4 years 2 months

The judgment still records the five-year sentence; the detention period is credited during execution.

Section 468 and Personal Liberty

The provision has an important connection with the constitutional principle of protection of personal liberty.

Since pre-trial detention restricts a person’s liberty before guilt is finally established, recognising that period in the execution of the subsequent sentence provides an important safeguard against unnecessarily prolonged incarceration.

Common Confusions

Is every period between arrest and conviction counted?

No.

The provision concerns the period actually undergone in detention.

Does detention in another case count?

Generally, the detention must relate to the same case for which the sentence is imposed.

Does time spent on bail count as detention?

No.

Time spent on bail is not ordinarily a period of detention.

Does Section 468 cancel part of the sentence?

It does not cancel the sentence. It provides for set-off of qualifying detention against the term of imprisonment.

Does it apply to fines?

The provision specifically concerns set-off against imprisonment, not conversion of detention into a fine credit.

Does it mean the accused is treated as convicted during pre-trial detention?

No.

Set-off is a sentencing and execution rule. It does not retrospectively convert pre-trial detention into post-conviction imprisonment.

BNSS and CrPC

Section 468 of the BNSS corresponds to Section 428 of the Code of Criminal Procedure, 1973 (CrPC).

The corresponding CrPC provision established the principle that the period of detention undergone by an accused during investigation, inquiry or trial should be set off against the term of imprisonment imposed upon conviction, subject to the statutory requirements.

The BNSS retains this important safeguard in its provisions concerning execution of sentences.

Relationship with Nearby Provisions

The surrounding provisions deal with the execution and consequences of criminal sentences:

• Section 464: Suspension of execution of sentence of imprisonment
• Section 465: Who may issue warrant
• Section 466: Sentence on escaped convict when to take effect
• Section 467: Sentence on offender already sentenced for another offence
• Section 468: Period of detention undergone by accused to be set off against sentence of imprisonment
• Section 469: Saving
• Section 470: Return of warrant on execution of sentence
• Section 471: Money ordered to be paid recoverable as a fine

Section 468 therefore focuses specifically on crediting pre-conviction detention toward the imprisonment sentence.

Topic at a Glance

• Topic: Set-off of period of detention
• BNSS Section: Section 468
• Main subject: Credit for detention undergone during investigation, inquiry or trial
• Set-off against: Term of imprisonment imposed upon conviction
• Connection required: Detention must relate to the same case
• Time on bail: Not treated as detention
• Purpose: Prevent excessive imprisonment and ensure fair sentence calculation
• Nature: Procedural and executory
• CrPC equivalent: Section 428 CrPC

Quick Revision

• Section 468 BNSS deals with set-off of pre-conviction detention against a sentence of imprisonment.
• It applies to detention undergone during investigation, inquiry or trial.
• The detention must relate to the same case in which the imprisonment sentence is imposed.
• The qualifying detention period is credited against the term of imprisonment.
• Time spent on bail is not ordinarily treated as detention.
• Set-off does not amount to acquittal or cancellation of conviction.
• It does not itself alter the sentence recorded by the court.
• Its practical effect is to reduce the period of imprisonment remaining to be served.
• Section 467 concerns multiple sentences, while Section 468 concerns pre-conviction detention.
• Section 468 corresponds to Section 428 of the CrPC.

ASLO READ: Section 467 – Sentence on offender already sentenced for another offence

Conclusion

Section 468 of the BNSS provides an important safeguard by allowing the period of detention already undergone during investigation, inquiry or trial to be set off against the term of imprisonment imposed upon conviction. The provision ensures that qualifying pre-trial detention is taken into account when calculating the imprisonment that remains to be served. By recognising time already spent in custody in the same case, Section 468 promotes fairness, prevents unnecessarily prolonged incarceration and provides clarity in the execution of imprisonment sentences.