When a witness has entered into an undertaking to appear, upon his failure to do so the undertaking is forfeited in the same manner as undertakings of bail.
Idaho Code § 19-3011
Forfeiture of undertaking of witness
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.