90.—(1) The Judge in Lunacy may upon application by order direct an inquisition whether a person is of unsound mind and incapable of managing himself and his affairs.
(2) Where the alleged lunatic is within the jurisdiction, he shall have notice of the application and shall be entitled to demand an inquiry before a jury.
(3) Upon the hearing of the application, the alleged lunatic may withdraw any demand for a jury made by him.