Wis. Stat. § 858.09: Inventory, certification, examination in court.

The personal representative shall certify under oath that the inventory, to the best of the personal representative’s knowledge, includes all property, encumbrances, liens or charges required to be shown therein. The court, at the request of any person interested in the estate or the property listed or on its own motion, may examine the personal representative on oath in relation thereto or in relation to any proposed addition thereto or deletion therefrom.