(a) If any person alleges in writing, verified by oath, that any person declared to be incapacitated, or addicted to habitual drunkenness, is no longer incapacitated, or is no longer so addicted, the court in which the proceedings were held shall cause the facts to be inquired into in such manner as it may direct.
(b) If it is found that the person has been restored to capacity or has reformed, he or she shall be discharged from care and custody, and the guardian shall immediately settle his or her accounts and shall restore to the person all things remaining in the guardian's hands belonging or appertaining to him or her.