Idaho Code § 15-3-105: Proceedings affecting devolution and administration — Jurisdiction of subject matter.

Persons interested in decedents’ estates may apply to the registrar for determination in the informal proceedings provided in this chapter, and may petition the court for orders in formal proceedings within the court’s jurisdiction including but not limited to those described in this chapter. The court has exclusive jurisdiction of formal proceedings to determine how decedents’ estates subject to the laws of this state are to be administered, expended and distributed.