Persons appointed and sworn as provided in section 4:15-8 of this title shall possess the authority and powers on the stud farm and exhibition grounds, and on the lands and premises adjacent thereto, within the limits named in section 4:15-7 of this title, which constables possess in criminal cases in this state. They may, without process, arrest all persons there found who shall:
The persons so arrested shall be taken, as soon as conveniently may be, before a magistrate of the county, there to be dealt with according to law.
N.J.S. § 4:15-9