law: Code of Criminal Procedure Act, 1973
  
  41.When police may arrest without warrant.-
  (1) Any police officer may without an order
  
  from a Magistrate and without a warrant, arrest any person-
  (a) who has been concerned in any cognizable offence, or against whom a
  
  reasonable complaint has been made, or credible information has been received,
  
  or a reasonable suspicion exists, of his having been so concerned; or
  (b) who has in his possession without lawful excuse, the burden of proving
  
  which excuse shall lie on such person, any implement of house-breaking; or
  (c) who has been proclaimed as an offender either under this Code or by order
  
  of the State Government; or
  (d) in whose possession anything is found which may reasonably be suspected to
  
  be stolen property and who may reasonably be suspected of having committed an
  
  offence with reference to such thing; or
  
  
  (e) who obstructs a police officer while in the execution of his duty, or who
  
  has escaped, or attempts to escape, from lawful custody; or
  (f) who is reasonably suspected of being a deserter from any of the Armed
  
  Forces of the Union ; or
  (g) who has been concerned in, or against whom a reasonable complaint has been
  
  made, or credible information has been received, or a reasonable suspicion
  
  exists, of his having been concerned in, any act committed at any place out of
  
  India which, if committed in India, would have been punishable as an offence,
  
  and for which he is, under any law relating to extradition, or otherwise,
  
  liable to be apprehended or detained in custody in India; or
  (h) who, being a released convict, commits a breach of any rule made under
  
  sub-section (5) of section 356; or
  (I) for whose arrest any requisition, whether written or oral, has been
  
  received from another police officer, provided that the requisition specifies
  
  the person to be arrested and the offence or other cause for which the arrest
  
  is to be made and it appears there from that the person might lawfully be
  
  arrested without a warrant by the officer who issued the requisition.
  (2) Any officer in charge of a police station
  
  may, in like manner, arrest or cause to be arrested any person, belonging to
  
  one or more of the categories of persons specified in section 109 or section
  
  110.