Lrewarp IsLaNnDs. Power to board vessel, etc, Trial of per- sons brought before Magis- trate under sections 17 and 18, ~ 12 Predial Larceny (Prevention) No. 6 of 1954 (4) lf a police officer fails or is for any reason whatsoever unable to arrest any person mentioned in paragraphs (a) and (b) of subsection (3) of this section, a Magistrate or Justice of the Peace may issue a warrant for the arrest of sucli person, or a Magistrate may issue a summons requiring such person to appear before the District Magistrate at a time and place to be mentioned in the summons, 18. (1) Any police officer may go on board any vessel in any harbour, bay or roadstead and remain on board the vessel for such reasonable time as he deems expedient. If he has reasonable grounds to suspect that there is on board the vessel any predial produce stolen or unlawfully obtained, he may search, with any assistants, any and every part of the vessel, and, after demand and refusal of the keys break open any receptacle. Upon discovery of any predial produce which he may reasonably suspect to have been stolen or unlawfully obtained, the police officer may tike’ such produce and the person in whose possession it is found before a Magistrate. (2) A police officer may pursue and detain any person in the act of conveying away from any vessel ‘any praedial produce which such police officer may reasonably suspect to have been stolen or unlawfully obtained, whether that person has landed or not, together with any pradial produce so conveyed away or found in his possession. 19. A Magistrate may call upon any person brought or appearing before him under the provi- sions of section 17 or section 18 to give an account to the satisfaction of such Magistrate— (a) by what lawful means any predial produce reasonably suspected to have been stolen or unlawfully obtained came to be in the house, store, yard, place or vessel or on the land where such produce was found; or (6) that he was not privy to the placing of such priedial produce in such house, store, yard, place or vessel or on such land, knowing