The testimony may be oral or by deposition, taken as in an action at law in the district court.
Depositions in general,
Iowa Code § 62.16
Testimony
[C51, §351; R60, §581; C73, §703; C97, §1209; C24, 27, 31, 35, 39, §1035; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §62.16]
Official source: Iowa Legislature. Reproduced from public-domain Iowa statutes; confirm against the official source for the current text. Not legal advice.