Section 31, THE CRIMINAL PROCEDURE ACTS, 1965

In addition to and independently of the facilities provided by section 30, it shall be lawful for any constable todetain any person carrying or conveying along any square, street, highway, quay or avenue or other public place any animal, matter or thing which such constable shall suspect of having been stolen or otherwise unlawfully obtained, or in respect of which he shall suspect that any criminal offence has been, is being or is about to be committed, and to examine any box, parcel, basket, bundle, or other package carried or conveyed by such person which he may reasonably suspect to contain any such animal, matter or thing as aforesaid; and if such person does not give a satisfactory account of himself and of any animal, matter or thing such examination may discover, to arrest such person and cause him to be taken before a Court as soon as practicable to be dealt with according to law. Judge only may authorize search in Post and Telegraph Offices.