Cr.P.C Section 54

 When police may arrest without warrant.

(1) Any policeofficer may, without an order from a Magistrate and without a warrant, arrest—

firstly, any person 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;

secondly, any person having in his possession without lawful excuse, the burden of proving which excuse shall lie on such person, any implement of housebreaking;

thirdly, any person who has been proclaimed as an offender either under this Code or by order of the [Provincial Government] ;

fourthly, any person 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 ;

fifthly, any person who obstructs a policeofficer while in the execution of his duty, or who has escaped, or attempts to escape, from lawful custody ;

sixthly, any person reasonably suspected of being a deserter from [the armed forces of Pakistan] [* * *] [* * *]

seventhly, any person 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 [Pakistan] which, if committed in [Pakistan], 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 [Pakistan] [*];

eighthly, any released convict committing a breach of any rule made under section 565, subsection (3);

[ninthly, any person for whose arrest a requisition has been received from another policeofficer, 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 therefrom that the person might lawfully be arrested without a warrant by the officer who issued the requisition.]

(2) [* * * * * * *]