Technical errors in the proceeding or failure to observe the technical rules of evidence shall not constitute grounds for reversal of any decision unless it shall appear to the reviewing court that such error or failure materially affects the rights of any party and results in substantial injustice to any interested party.
Iowa Code § 138.9
Liberal rules to prevail
[C71, 73, 75, 77, 79, 81, §138.9]
Official source: Iowa Legislature. Reproduced from public-domain Iowa statutes; confirm against the official source for the current text. Not legal advice.