Explained: detention vs arrest, and the limits the law places on police powers
When police 'detain' protesters for a few hours, is that an arrest? The answer decides which rights apply.
Published 8 October 2026. Written by Pratidin from the reports linked at the end; every fact checked by a separate review before publishing. How we work
The Indian Express explains the difference between detention and arrest after Opposition leader Rahul Gandhi was detained in New Delhi during a protest demanding the resignation of Chief Election Commissioner Gyanesh Kumar. Police routinely 'detain' protesters for some hours and release them without charges. An arrest is different: it is the formal taking of a person into custody on an accusation or suspicion of an offence, it starts criminal proceedings, and it triggers a full set of constitutional and statutory safeguards. Since 1 July 2024 these powers are governed by the Bharatiya Nagarik Suraksha Sanhita, 2023 (BNSS), which replaced the Code of Criminal Procedure (CrPC), and the Bharatiya Nyaya Sanhita, 2023 (BNS), which replaced the Indian Penal Code (IPC).
Article 22 of the Constitution protects a person who is arrested: the right to be told the grounds of arrest as soon as may be, the right to consult and be defended by a lawyer of choice, and production before the nearest magistrate within 24 hours, excluding travel time. The BNSS repeats these duties (Section 47 on grounds, Section 58 on the 24-hour limit). For protests, three BNSS provisions matter. Section 172 binds everyone to obey lawful police directions and lets the police detain or remove anyone who resists; such a person must be taken before a magistrate or, in petty cases, released within 24 hours. Section 170 allows a preventive arrest without a warrant of a person who the police know is designing to commit a cognizable offence (one for which police can arrest without a warrant) if it cannot otherwise be prevented. Section 163 lets a magistrate issue prohibitory orders.
The line can blur. Disobeying a prohibitory order under Section 163 BNSS can be an offence under Section 223 BNS (the old IPC Section 188), and then a detention can become a formal arrest with an FIR. The Supreme Court has repeatedly warned against routine arrests. In Joginder Kumar v. State of U.P. (1994) it held that the power to arrest must be justified, not used merely because it exists. In Arnesh Kumar v. State of Bihar (2014) it barred automatic arrests for offences punishable with up to seven years. Commentators, citing these rulings and D.K. Basu, argue that liberty cannot be curtailed by labels: calling custody 'detention' does not remove the duty to act lawfully. Preventive detention under laws such as the National Security Act is a separate category under Article 22(3) to (7), with fewer safeguards.
Prelims facts
- Arrest is custody on an accusation of an offence and starts criminal proceedings; detention during protests is temporary custody, usually without charges.
- Article 22(1) and (2) guarantee the grounds of arrest, a lawyer of choice, and production before a magistrate within 24 hours.
- Section 172 BNSS lets police detain or remove persons resisting lawful directions, who must be produced before a magistrate or released within 24 hours.
- Section 170 BNSS (old CrPC Section 151) allows preventive arrest without a warrant to stop a cognizable offence.
- Disobeying a Section 163 BNSS prohibitory order can attract Section 223 BNS, turning a detention into a formal arrest.
Quick recall
- Which BNSS section lets police detain or remove persons resisting lawful directions?
- Section 172; release or production before a magistrate within 24 hours.
- BNSS successor of CrPC Section 151 (preventive arrest)?
- Section 170.
- BNSS successor of CrPC Section 144 (prohibitory orders)?
- Section 163.
- BNS successor of IPC Section 188 (disobeying a public servant's order)?
- Section 223.
- Which BNSS section limits police custody without a magistrate's order to 24 hours?
- Section 58 (old CrPC Section 57).
- Which clause of Article 22 excludes preventive detainees from clauses (1) and (2)?
- Clause (3).
- Which case barred automatic arrest for offences punishable up to seven years?
- Arnesh Kumar v. State of Bihar (2014).
- When did the BNSS and BNS come into force?
- 1 July 2024.
Prelims practice question
With reference to police powers under the Bharatiya Nagarik Suraksha Sanhita, 2023, consider the following statements:
1. Section 170 allows the police to arrest without a warrant a person designing to commit a cognizable offence, if the offence cannot otherwise be prevented.
2. Under Section 172, a person detained for resisting a lawful police direction may be held for up to 72 hours without being produced before a magistrate.
3. Section 163 corresponds to Section 144 of the old CrPC.
Which of the statements given above are correct?
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
Show answer
Answer: (c) 1 and 3 only. Statement 1 is correct: this is the preventive arrest power, the successor of CrPC Section 151. Statement 2 is wrong: the person must be taken before a magistrate or, in petty cases, released as soon as possible within 24 hours. Statement 3 is correct: Section 163 BNSS is the successor of CrPC Section 144 on prohibitory orders.
Use this in UPSC Mains: previous-year questions
Recurring theme: Personal liberty, arrest and detention: Article 22 and police powers under the new criminal laws
- How to use this
Use arrest-related case law and the detention debate to show how courts have read procedural safeguards into personal liberty.
- Joginder Kumar (1994) held that arrest must be justified and not made merely because it is lawful.
- Arnesh Kumar (2014) barred automatic arrests for offences punishable up to seven years, requiring necessity tests now in Section 35 BNSS.
- Even protest detentions are time-bound: under Section 172 BNSS the person must be produced before a magistrate or released within 24 hours.
Custodial excesses during detentions fall within the remit of Human Rights Commissions, though the question is about their effectiveness.
Article 22(3) withdraws the clause (1) right to consult a lawyer from persons held under preventive detention laws, which bears directly on statement 2.
Mains practice question
Police frequently 'detain' protesters without formally arresting them. Distinguish between detention and arrest under the Constitution and the BNSS, and examine whether existing safeguards adequately protect the right to protest. (250 words)
Model answer
The detention of Opposition leader Rahul Gandhi during a recent protest has revived the question of how far police can hold people who are not formally accused of a crime.
Arrest and detention distinguished
- Arrest: custody on an accusation or suspicion of an offence; starts criminal proceedings; attracts Article 22(1) and (2) and BNSS Sections 47 and 58 (grounds, lawyer, magistrate within 24 hours).
- Protest detention: temporary custody to maintain order, usually without charges; Section 172 BNSS allows detention or removal of those resisting lawful directions, with release or production within 24 hours.
- Preventive arrest: Section 170 BNSS to stop a planned cognizable offence.
- Preventive detention: under laws such as the NSA, governed by Article 22(3) to (7).
Safeguards that exist
- Article 19(1)(a) and (b): peaceful assembly, subject to reasonable restrictions.
- Joginder Kumar (1994): arrest must be justified, not routine.
- D.K. Basu (1997): arrest memo, informing a relative, medical examination.
- Arnesh Kumar (2014): no automatic arrest for offences up to seven years.
Gaps
- 'Detention' is used without records, so safeguards are hard to enforce.
- Prohibitory orders under Section 163 BNSS, if broad, convert protest into an offence under Section 223 BNS.
- Courts act after the event; remedies are slow.
Way forward
- Mandatory written records of every protest detention, with time of release.
- Narrow, reasoned Section 163 orders open to quick review.
- Police training on proportionate crowd management.
Liberty cannot depend on the label police attach to custody; the law must track the substance.
The basics
Why this matters
Every large protest in India ends with a familiar line: "protesters were detained and later released". Few aspirants can say what legal power was used, or why it matters. The difference decides which rights apply, how long a person can be held, and whether a criminal case follows. It is a classic GS2 theme: personal liberty versus public order.
Three kinds of custody
The law recognises different ways the state can hold a person, with different safeguards.
- Based on accusation or suspicion of an offence
- Starts criminal proceedings, often with an FIR
- Full Article 22(1) and (2) rights: grounds, lawyer, magistrate within 24 hours
- BNSS Sections 35 to 62 govern procedure
- Holding a person to keep order, usually without charges
- No FIR unless an offence is made out
- Section 172 BNSS: produce before a magistrate or release within 24 hours
- Often ends with release the same day
The third category, preventive detention under special laws such as the National Security Act, is covered by Article 22 clauses (3) to (7) and allows longer custody with fewer rights.
The protest toolkit in the BNSS
- 1Section 163 BNSSMagistrate's prohibitory order (old CrPC 144)
- 2Section 172 BNSSDuty to obey lawful police directions; power to detain or remove those who resist
- 3Section 170 BNSSPreventive arrest of a person designing a cognizable offence (old CrPC 151)
- 4Section 223 BNSOffence of disobeying an order duly promulgated by a public servant (old IPC 188)
Two of these deserve a closer look: Preventive arrest under BNSS Section 170 and Prohibitory orders and the Section 223 offence.
How a detention can become an arrest
- 1Prohibitory orderA magistrate bars assembly in an area under Section 163 BNSS.
- 2Protest goes aheadPolice direct the crowd to disperse.
- 3DetentionThose who resist are detained or removed under Section 172 BNSS.
- 4Release or chargeMost are released within hours; if disobedience of the order is made out under Section 223 BNS, an FIR can be filed.
- 5Arrest safeguards applyOnce arrested, Article 22 and BNSS Sections 47 and 58 apply in full.
What the courts have said
The Supreme Court has built a body of Arrest safeguards in Supreme Court case law: arrest must be necessary and justified, the reasons recorded, and relatives informed. The thread running through these cases is that the state cannot escape duties by calling custody by another name.
Go deeper
In one line: Arrest is custody on an accusation of an offence with full constitutional safeguards; protest detention is temporary custody to keep order, governed mainly by Section 172 of the BNSS and a 24-hour limit.
Why it matters for UPSC
Questions on Article 22, preventive detention and the new criminal laws appear in both Prelims and Mains. The distinction also feeds GS2 answers on the right to protest and police accountability.
The core idea
Article 22 gives an arrested person the right to know the grounds, to a lawyer, and to be produced before a magistrate within 24 hours. Protest detention under Section 172 BNSS is lighter but still time-bound. Police can also make a Preventive arrest under BNSS Section 170 to stop a planned cognizable offence. Where a magistrate has issued an order, defying it can lead to Prohibitory orders and the Section 223 offence, turning a detention into an arrest. The courts' Arrest safeguards in Supreme Court case law insist that the substance of custody, not its label, decides the rights.
Numbers and dates to remember
- BNSS and BNS in force from 1 July 2024.
- Article 22(1), (2): grounds, lawyer, magistrate within 24 hours (excluding travel).
- BNSS Section 47: grounds of arrest; Section 58: 24-hour limit; Section 170: preventive arrest; Section 172: obey police directions; Section 163: prohibitory orders.
- BNS Section 223 = old IPC Section 188.
- Joginder Kumar (1994); D.K. Basu (1997); Arnesh Kumar (2014).
Where to go next
- Article 22: the constitutional floor for every arrest and detention.
- Preventive arrest under BNSS Section 170: arresting to prevent, not punish.
- Prohibitory orders and the Section 223 offence: how defying an order becomes a crime.
- Arrest safeguards in Supreme Court case law: the judgments that discipline arrest powers.
Go deeper: does the label 'detention' let the state avoid safeguards?
The police view. Detaining protesters for a few hours is the least intrusive way to keep order. It avoids FIRs and criminal records, clears roads and protects the protesters themselves. Section 172 BNSS gives an express power and builds in a 24-hour limit, and a Preventive arrest under BNSS Section 170 is available where an offence is imminent.
The civil liberties view. Detention is often unrecorded: no memo, no time of custody, no reasons. Without a record, a detained person cannot prove a breach of the 24-hour rule or seek a remedy. Broad orders under Section 163 BNSS can criminalise peaceful assembly, since disobedience becomes an offence under Section 223 BNS (see Prohibitory orders and the Section 223 offence). Critics say this chills the freedom to assemble peaceably and without arms under Article 19(1)(b).
What courts have held. The courts have long said custody begins when a person submits to police control, whether or not an arrest is recorded, and that every arrest involves custody but not every custody is an arrest. The Arrest safeguards in Supreme Court case law, from Joginder Kumar to Arnesh Kumar, make arrest an exception that must be justified. Commentators argue the same logic should apply to detention: liberty cannot be curtailed by labels or routine police action.
Preventive detention is different again. Article 22 clauses (3) to (7) allow detention without trial under laws such as the National Security Act, subject to review by an Advisory Board if custody exceeds three months. The detainee must be told the grounds and given a chance to make a representation, but does not get the full rights of an accused.
A balanced reform. Record every protest detention in writing with time in and out; require reasoned, narrow and time-limited Section 163 orders; and give magistrates a quick review role. This keeps public order tools while making the 24-hour rule enforceable.
Article 22
The constitutional floor for every arrest and detention.
In one line: Article 22 protects persons against arbitrary arrest and detention, and also sets the conditions for preventive detention.
Rights of an arrested person
- Clause (1): to be informed of the grounds of arrest as soon as may be, and to consult and be defended by a legal practitioner of choice.
- Clause (2): to be produced before the nearest magistrate within 24 hours of arrest, excluding the time of travel, and not held beyond that without a magistrate's authority.
The exceptions
Clause (3) says these rights do not apply to an enemy alien, or to a person arrested or detained under a law providing for preventive detention.
Preventive detention
Clauses (4) to (7) allow detention without trial to prevent future acts. Detention beyond three months needs an Advisory Board's opinion that there is sufficient cause. The detainee must be told the grounds and given the earliest opportunity to make a representation.
Where to go next
Preventive arrest under BNSS Section 170
Arresting to prevent an offence, not to punish one.
In one line: Section 170 of the BNSS lets a police officer arrest without a warrant a person who is designing to commit a cognizable offence, if the offence cannot otherwise be prevented.
What it allows
The officer must know of the design and believe that arrest is the only way to stop it. No magistrate's order or warrant is needed. A cognizable offence is one for which police may arrest without a warrant. The person cannot ordinarily be held beyond 24 hours under this section unless another provision of law authorises further detention.
Where it came from
It carries forward Section 151 of the CrPC, 1973, which was widely used to hold protesters and political workers ahead of demonstrations.
Why it is in the news
It is one of the powers police use around protests, alongside Section 172 BNSS, which lets them detain or remove people who resist lawful directions.
Where to go next
Prohibitory orders and the Section 223 offence
How defying an order turns a protest into a crime.
In one line: Section 163 BNSS lets a magistrate issue urgent orders banning assemblies or acts in an area, and knowingly disobeying such an order is an offence under Section 223 BNS.
Section 163 BNSS
It replaces the well-known Section 144 of the CrPC. A District Magistrate, Sub-divisional Magistrate or other empowered Executive Magistrate can issue an order to prevent obstruction, danger to life or safety, or a disturbance of public tranquillity. Such orders are meant to be temporary and must be reasoned.
Section 223 BNS
It replaces Section 188 of the IPC. It punishes disobedience of an order duly promulgated by a public servant, with heavier punishment where the disobedience causes danger or a riot.
Why it is in the news
When protesters defy a Section 163 order, police can first detain them under Section 172 BNSS and, if the offence is made out, register an FIR under Section 223 BNS, which converts a detention into an arrest.
Where to go next
Arrest safeguards in Supreme Court case law
The judgments that make arrest an exception, not a routine.
In one line: A line of Supreme Court judgments holds that the power to arrest must be used with justification and procedural care, because personal liberty under Article 21 is at stake.
Key judgments
- Joginder Kumar v. State of U.P. (1994): no arrest merely because it is lawful to do so; the officer must justify it, and the arrested person can have a friend or relative informed.
- D.K. Basu v. State of West Bengal (1997): guidelines including an arrest memo signed by a witness, informing a relative, and medical examination; many are now part of the statute.
- Arnesh Kumar v. State of Bihar (2014): for offences punishable with up to seven years, police must satisfy the necessity tests in the law (now Section 35 BNSS, earlier Section 41 CrPC) before arresting.
Why it is in the news
These cases are cited whenever routine detentions or arrests of protesters and political figures are questioned.
Where to go next
Take the 8 October 2026 quiz: 30 Prelims-style questions with answers