50. (1) A land surveyor may interrogate, under oath, any person whom he thinks capable of giving him information or is in possession of any writings, plans or documents touching on boundaries or limits of the land which he is employed to survey.
(2) Any person who refuses to give information voluntarily or produce documents required may be compelled, by a writ of subpoena, to appear before the land surveyor at the time and place fixed in the writ, and to bring with him any writing, plan or document mentioned therein.
Such writ shall be issued, at the request of the land surveyor, by the prothonotary of the Superior Court or the clerk of a Provincial Court in the district where the survey is carried out.
It shall be served in the manner provided in the Code of Civil Procedure.
(3) Any person so summoned, whose reasonable expenses have been paid or tendered, is deemed guilty of contempt of court if he refuses or neglects to appear.