Right to Know Grounds of Arrest in West Bengal
Reviewed by the Commoner Law Editorial Team. Sourced from Indian central (Union) law — Constitution of India, central Acts of Parliament, and Supreme Court decisions. State-level information reflects each state's own Acts and High Court rulings. Written in plain language for general understanding — this is educational content, not legal advice. Our editorial standards
What is this right?
The reason for your arrest is not optional information the officer can hold back — it is a constitutional entitlement that triggers the moment cuffs go on.
- Article 22(1) of the Constitution: no one may be detained without being informed, as soon as may be, of the grounds for the arrest.
- BNSS s. 47(1): the arresting officer must communicate the full particulars of the offence — not just "You are under arrest."
- BNSS s. 50: the police must also tell the next of kin where you are being held.
- D.K. Basu guidelines (now partly written into BNSS): an arrest memo has to be prepared, signed by you and a witness, and you can name a relative or friend who must be informed.
An arrest where grounds are never communicated is illegal on its face — the High Court (or the Supreme Court) can be moved by writ of habeas corpus to order your immediate production and release.
When does it apply?
- A police officer — Central or State — is putting you under arrest or holding you at the station.
- A family member has been picked up and you want to know what the case actually is.
- You are sitting in a thana and no one will tell you why.
What to Do If Police in India Arrest You Without Explaining the Grounds
Stay calm, but document everything from the first minute.
- Ask the officer plainly: "What is the reason for my arrest?" and make sure the answer goes into the arrest memo.
- Insist that the officer contact your family member or lawyer — BNSS s. 50 makes this their duty, not your favour.
- Read the arrest memo before signing. It must show the date, time and a witness signature.
- If grounds are withheld, get a relative to file a habeas corpus petition in the High Court of the relevant State — the court will summon the police to produce you and justify the detention.
- Call the State Legal Services Authority (SLSA) or NALSA on 15100 — free representation is available, immediately.
What should you NOT do?
- Do not physically resist arrest even when it looks unlawful. Fight it through court — resisting itself is a criminal offence.
- Do not sign blank or partly-filled papers at the police station. Anything signed becomes part of the record.
- Do not give a statement after a formal arrest without your lawyer in the room.
How West Bengal differs from central law
In West Bengal, arrests are governed by the Bharatiya Nagarik Suraksha Sanhita, 2023 (BNSS, which replaced the Code of Criminal Procedure) and the West Bengal Police Act, 1952. In Kolkata, the Kolkata Police Act, 1866 (one of the oldest police statutes in India) governs the Kolkata Police force. All arrests must comply with the constitutional safeguards under Articles 21 and 22 and the Supreme Court guidelines in D.K. Basu v. State of West Bengal (1997).
The D.K. Basu guidelines — which originated from a West Bengal case — require that the arresting officer must wear an accurate, visible, and clear identification badge, prepare a memo of arrest attested by a witness (preferably a family member), and inform the arrested person's family or friend about the arrest and the place of detention. The arrested person has the right to know the grounds of arrest at the time of arrest.
The West Bengal Police Act, 1952 establishes the administrative framework for policing in the state. The Kolkata Police operates under a separate Commissioner system. The West Bengal Human Rights Commission, established under the Protection of Human Rights Act, 1993, investigates complaints of human rights violations by the police in the state.
Additional Steps in West Bengal
If you are arrested, insist on being informed of the grounds of arrest and demand a copy of the arrest memo. Contact a lawyer immediately. You have the right to make a phone call to inform a family member. If your rights are violated, file a complaint with the West Bengal Human Rights Commission at Bhabani Bhaban, Alipore, Kolkata 700027 (phone: 033-24799633). You can also file a writ of habeas corpus in the Calcutta High Court.
Relevant Law: Bharatiya Nagarik Suraksha Sanhita, 2023, Sections 35-37; West Bengal Police Act, 1952; Kolkata Police Act, 1866; D.K. Basu v. State of West Bengal (1997) 1 SCC 416
Common Questions
When does right to know grounds of arrest apply?
A police officer — Central or State — is putting you under arrest or holding you at the station.A family member has been picked up and you want to know what the case actually is.You are sitting in a thana and no one will tell you why.
What should I do if police in India arrest me without telling me why?
Stay calm, but document everything from the first minute.Ask the officer plainly: "What is the reason for my arrest?" and make sure the answer goes into the arrest memo.Insist that the officer contact your family member or lawyer — BNSS s. 50 makes this their duty, not your favour.Read the arrest memo before signing. It must show the date, time and a witness signature.If grounds are withheld, get a relative to file a habeas corpus petition in the High Court of the relevant State — the court will summon the police to produce you and justify the detention.Call the State Legal Services Authority...
What mistakes should I avoid with right to know grounds of arrest?
Do not physically resist arrest even when it looks unlawful. Fight it through court — resisting itself is a criminal offence.Do not sign blank or partly-filled papers at the police station. Anything signed becomes part of the record.Do not give a statement after a formal arrest without your lawyer in the room.
Right to Know Grounds of Arrest in other states
Same topic, different jurisdiction. Pick the one that applies to you.