or “plain error” exists. See, e.g., State v. Brown, 853 P.2d 851, 853-54 (Utah 1992); State v. Gibbons, 740 P.2d 1309, 1311 (Utah 1987); State v. Steggell, 660 P.2d 252, 254 (Utah 1983). In the present case, or in any similar case, the only way that a defendant could challenge the constitutionality of section 78 — 3—31(6)(a) would be first to consent to a hearing by a commissioner and then to challenge the validity of that very consent. Such a procedure would likely be futile inasmuch as it would invariably result in the withdrawal of the consent, either by the defendant or by court order. Indeed, absent the approach taken by Ohms, it is unlikely that section 78-3-31(6)(a) would ever be subject to constitutional scrutiny. This is precisely the sort of exceptional circu Ct.App.1990) (<HOLDING>). For example, a legislator cannot appoint
holding that utah const art vi  1 limits legislatures ability to delegate legislative powers or functions to others holding that the governor of new york has only those powers delegated to him by the state constitution and the statutes holding that the contact clause reaches every form in which the legislative power of a state is exerted whether it be a constitution a constitutional amendment an enactment of the legislature a bylaw or ordinance of a municipal corporation or a regulation or order of some other instrumentality of the state exercising delegated legislative authority holding that crime definition and penalty powers are essential legislative functions that cannot constitutionally be delegated by the utah legislature to any other person or body holding that legislative functions such as powers of zoning and rezoning cannot be delegated