N.D. Cent. Code § 44-09-07: Procedure after notice

If the accused does not appear, the senate, upon proof of service of the notice and articles of impeachment in any manner provided in sections 44-09-05 and 44-09-06, as the circumstances may require, of its own motion or for cause shown, may assign another day for the hearing of the accused, or may proceed in the absence of the accused to trial and judgment.