Idaho Code § 50-1810

Such city after taking over the control, conveyance, distribution and regulation of such irrigating water, shall have power, by ordinance, to declare it a misdemeanor for any unauthorized person to meddle, dam, turn, interfere, or in any manner tamper with such irrigating water and disarrange the schedule of such city and thereby deprive any user or landowner from the uninterrupted use and benefit of his turn of said water, and provide a penalty for such misdemeanor.