Utah Code Ann. § 76-4-203
(1)
(a) As used in this section:
(3) A violation of Subsection (2) where the actor solicits the adult to commit:
(c) any of the following felony offenses is a first degree felony punishable by imprisonment for an indeterminate term of not fewer than three years and which may be for life:
(d) except as provided in Subsection (4), any of the following felony offenses is a first degree felony punishable by a term of imprisonment of not less than 15 years and which may be for life:
(4) If a court finds that a lesser term than the term described in Subsection (3)(d) is in the interests of justice and states the reasons for this finding on the record, the court may impose a term of imprisonment of not less than:
(6) It is not a defense to a violation of this section that:
(a) the adult solicited by the actor:
(b) the actor: