La. Civ. Code art. 389
Current with operative changes from the 2024 Third Special Legislative Session
A court may order the full interdiction of a natural person of the age of majority, or an emancipated minor, who due to an infirmity, is unable consistently to make reasoned decisions regarding the care of his person and property, or to communicate those decisions, and whose interests cannot be protected by less restrictive means.
La. C.C. § 389