15.—If a justice of the District Court or a Peace Commissioner is satisfied on the sworn information of a member of the Garda Síochána that there are reasonable grounds for suspecting that an offence under section 12 has been or is being committed on any premises, he may issue a warrant under his hand authorising a specified member of the Garda Síochána, accompanied by such other members of the Garda Síochána as the member thinks necessary, at any time or times within one month from the date of the issue of the warrant, on production if so requested of the warrant, to enter, if need be by force, and search the premises specified in the warrant and to seize anything found there that he believes on reasonable grounds may be required to be used in evidence in any proceedings for an offence under section 12 or an offence under the Customs Acts in relation to the importation into the State of a weapon to which section 12 applies.