Utah Code § 81-11-315: Role of prosecutor or attorney general.

(1) In a case arising under this chapter or involving the Hague Convention on the Civil Aspects of International Child Abduction, the prosecutor or attorney general may take any lawful action, including resort to a proceeding under this chapter or any other available civil proceeding to locate a minor child, obtain the return of a minor child, or enforce a child custody determination if there is:

(a) an existing child custody determination;

(b) a request from a court in a pending child custody case;

(c) a reasonable belief that a criminal statute has been violated; or

(d) a reasonable belief that the minor child has been wrongfully removed or retained in violation of the Hague Convention on the Civil Aspects of International Child Abduction.

(2) A prosecutor or attorney general acts on behalf of the court and may not represent any party to a child custody determination.