N.J. Stat. § 26:3-59
The Superior Court or any municipal court may issue a warrant to search for any nuisance affecting health. Such warrant may be issued according to the practice of the court, upon the information and belief of any officer or agent of the State Department of Health, or of any local board of health that there is in any dwelling house, store, stable or any building of any kind whatsoever any nuisance affecting health or any person sick of any contagious or infectious disease, or any condition of contagion or infection which may have been caused by anyone recently sick of any such disease in any such dwelling house or other place. The warrant shall be directed to the sheriff of the county within which the search is to be made, or to any marshal, police officer, or officer or agent of the local board having jurisdiction within the place where such search is to be made.
N.J.S. § 26:3-59