Irregularities and objections.

161—9.25(216) Irregularities and objections. 9.25(1) Notice. All objections to any notice of taking any depositions are waived unless promptly served in writing upon the commission. 9.25(2) Officer. Objection to the commission investigator or other officer’s qualification to take a deposition is waived unless made before such taking begins, or as soon thereafter as objector knows it or could discover it with reasonable diligence. 9.25(3) Taking depositions. Errors or irregularities occurring during an oral deposition as to any conduct or manner of taking it, or the oath, or the form of any question or answer, and any other errors which might thereupon have been cured, obviated or removed, are waived unless seasonably objected to during the deposition.