Search and seizure by magistrate

(a) that any person residing within the local limits of his jurisdiction has in his possession any arms or ammunition for any unlawful purpose, or

(b) that such person cannot be left in the possession of any arms or ammunition without danger to the public peace or safety, the magistrate may, after having recorded the reasons for his belief, cause a search to be made of the house or premises occupied by such person or in which the magistrate has reason to believe that such arms or ammunition are or is to be found and may have such arms or ammunition, if any, seized and detain the same in safe custody for such period as he thinks necessary, although that person may be entitled by virtue of this Act or any other law for the time being in force to have the same in his possession.