Question

Which Section requires police to record reasons for arrest?

Hint:

Arrest without warrant (≤7 years) → Section 41(1)(b): reasons must be recorded. Non-compliance with notice → Section 41A(3): reasons must be recorded. Always link this to Arnesh Kumar.

Answer 1

Two sections carry this duty, and they cover two different stages of an arrest.

Section 41(1)(b) of the CrPC, now Section 35(1)(b) of the BNSS, applies when the police want to arrest without a warrant for an offence punishable with up to seven years. The officer cannot simply arrest on suspicion; the officer must be satisfied that the arrest is needed for a listed reason, such as stopping further offences or making sure investigation is not hampered, and that satisfaction must be written down as reasons, not just held in the officer's head.

Section 41A(3) of the CrPC, now Section 35A of the BNSS, applies at a later stage, after a notice of appearance has already been served instead of an arrest. If the person ignores that notice, the police may arrest, but again only after recording in writing why arrest, rather than continued notice, has become necessary.

Both sections exist to stop arrest from being an automatic first response, and both were reinforced by the Supreme Court in Arnesh Kumar v. State of Bihar (2014), which made compliance with these recorded reasons a precondition for a valid arrest under either provision.

Answer 2

A simple way to hold both sections in mind is to ask which stage of police contact is in play, because the recording duty attaches to two different stages, not one.

Stage one, first contact with a suspect
If the police have not yet issued any notice and are deciding whether to arrest straight away for an offence carrying up to seven years' punishment, the governing rule is Section 41(1)(b) CrPC, now Section 35(1)(b) BNSS. The officer must first ask whether arrest is actually necessary for one of the specific purposes the section lists, and only then may arrest, after writing down that reasoning.

Stage two, after a notice has already gone out
If the police chose the milder route first and issued a notice of appearance under Section 41A CrPC, now Section 35A BNSS, and the person failed to show up or comply, the governing rule shifts to Section 41A(3). Arrest is now permitted, but only if the officer again records in writing why the notice route has failed and custody has become necessary.

Why this two-stage design matters
By attaching the same recording duty at both points, the law makes sure that no arrest in a minor offence case happens without a documented justification, whether that arrest is the first step taken or the fallback after a notice is ignored. The Supreme Court in Arnesh Kumar v. State of Bihar (2014) treated both duties as mandatory, not optional, and made an arrest without them liable to be struck down.

So depending on which stage triggered the arrest, the section is either 41(1)(b) CrPC or 35(1)(b) BNSS, or 41A(3) CrPC or 35A BNSS, and in either case, written reasons are the precondition for a lawful arrest.