A person held to answer to a charge for a public offense can take advantage of any objection to the panel or to any individual grand juror in no other mode than by challenge.
Idaho Code § 19-1009
Objections must be by challenge
Current official text: Idaho Statutes (Idaho Legislature). Digitized from the UniCourt Code Improvement Commission public-domain capture. Reproduced from public-domain Idaho statutes; confirm against the official source for the current text. Not legal advice.