Del. Code tit. 25 § 1104
The commissioners shall give at least 20 days notice of their meeting to execute the commission by advertisements at the courthouse door and at 5 public places in the 100 where the land lies; and shall meet on the land accordingly. They shall be sworn to mark and bound the land mentioned in the commission most agreeably to the true original location thereof, according to the evidence, without favor, affection or partiality, according to the best of their experience, ability and judgment, and make true return thereof. They may direct writs of summons for witnesses to be issued out of the Court, and the neglect of the witnesses to attend may be punished as a contempt of court. They may cause the land mentioned in the commission, or any other land, to be surveyed, and may appoint 1 or more surveyors and chain carriers to make the survey, and may swear them to do their duty faithfully and impartially, according to the best of their skill and ability. They may also swear the witnesses. They may adjourn from time to time. The commissioners, or a majority of them concurring, shall cause the land mentioned in the commission to be marked and bounded according to its true original location, and shall return a certificate of the marked bounds or lines to the Court, under their hands, which return shall be recorded in the recorder's office of the county, unless it is set aside by the Court for irregularity.
25 Del. C. § 1104