Del. Code tit. 16 § 311
Whenever a local board of health thinks it necessary for the preservation of the lives and health of the citizens to enter a place, building or vessel within its jurisdiction for the purpose of examining into and destroying, removing or preventing any nuisance, source of filth or cause of sickness and is refused such entry, any member of the local board may make complaint, under oath, to any justice of the peace of the county, stating the facts of the case as far as the board member has knowledge thereof. Such justice of the peace shall thereupon issue a warrant directed to the sheriff or any constable of the county commanding the sheriff or constable to take sufficient aid and being accompanied by 2 or more members of the local board, between the hours of sunrise and sunset, repair to the place where such nuisance, source of filth or cause of disease may exist and destroy, remove or prevent the same, under the direction of such members of the local board.
16 Del. C. § 311